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131024040100 = 22524353975927
BaseRepresentation
bin111101000000110100…
…1000011000010100100
3110112012021211212112221
41322001221003002210
54121314123240400
6140105215522124
712315616652002
oct1720151030244
9415167755487
10131024040100
1150626722668
1221487829344
13c4810ab015
1464ad4b3a72
15361cbe2c1a
hex1e81a430a4

131024040100 has 144 divisors (see below), whose sum is σ = 299530078848. Its totient is φ = 49698754560.

The previous prime is 131024040079. The next prime is 131024040107. The reversal of 131024040100 is 1040420131.

It is not an unprimeable number, because it can be changed into a prime (131024040107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22103337 + ... + 22109263.

It is an arithmetic number, because the mean of its divisors is an integer number (2080069992).

Almost surely, 2131024040100 is an apocalyptic number.

131024040100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131024040100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149765039424).

131024040100 is an abundant number, since it is smaller than the sum of its proper divisors (168506038748).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131024040100 is a wasteful number, since it uses less digits than its factorization.

131024040100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134 (or 6127 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 131024040100 its reverse (1040420131), we get a palindrome (132064460231).

The spelling of 131024040100 in words is "one hundred thirty-one billion, twenty-four million, forty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 43 50 53 86 97 100 106 172 194 212 215 265 388 430 485 530 860 970 1060 1075 1325 1940 2150 2279 2425 2650 4171 4300 4558 4850 5141 5300 5927 8342 9116 9700 10282 11395 11854 16684 20564 20855 22790 23708 25705 29635 41710 45580 51410 56975 59270 83420 102820 104275 113950 118540 128525 148175 208550 221063 227900 254861 257050 296350 314131 417100 442126 509722 514100 574919 592700 628262 884252 1019444 1105315 1149838 1256524 1274305 1570655 2210630 2299676 2548610 2874595 3141310 4421260 5097220 5526575 5749190 6282620 6371525 7853275 11053150 11498380 12743050 13507633 14372975 15706550 22106300 24721517 25486100 27015266 28745950 30470707 31413100 49443034 54030532 57491900 60941414 67538165 98886068 121882828 123607585 135076330 152353535 247215170 270152660 304707070 337690825 494430340 609414140 618037925 675381650 761767675 1236075850 1310240401 1350763300 1523535350 2472151700 2620480802 3047070700 5240961604 6551202005 13102404010 26204808020 32756010025 65512020050 131024040100