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125023197210 = 23537612816571
BaseRepresentation
bin111010001101111110…
…1101001100000011010
3102221201002012110122120
41310123331221200122
54022021414302320
6133233533002110
712014122433142
oct1643375514032
9387632173576
10125023197210
114902737657a
1220292023336
13ba35aa8702
1460a0525922
1533bae90440
hex1d1bf6981a

125023197210 has 128 divisors (see below), whose sum is σ = 314379664128. Its totient is φ = 31788288000.

The previous prime is 125023197157. The next prime is 125023197217. The reversal of 125023197210 is 12791320521.

It is a super-2 number, since 2×1250231972102 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125023197217) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19023225 + ... + 19029795.

It is an arithmetic number, because the mean of its divisors is an integer number (2456091126).

Almost surely, 2125023197210 is an apocalyptic number.

125023197210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 125023197210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157189832064).

125023197210 is an abundant number, since it is smaller than the sum of its proper divisors (189356466918).

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

125023197210 is a wasteful number, since it uses less digits than its factorization.

125023197210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6960.

The product of its (nonzero) digits is 7560, while the sum is 33.

The spelling of 125023197210 in words is "one hundred twenty-five billion, twenty-three million, one hundred ninety-seven thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 37 61 74 111 122 183 185 222 281 305 366 370 555 562 610 843 915 1110 1405 1686 1830 2257 2810 4215 4514 6571 6771 8430 10397 11285 13142 13542 17141 19713 20794 22570 31191 32855 33855 34282 39426 51423 51985 62382 65710 67710 85705 98565 102846 103970 155955 171410 197130 243127 257115 311910 400831 486254 514230 634217 729381 801662 1202493 1215635 1268434 1458762 1846451 1902651 2004155 2404986 2431270 3171085 3646905 3692902 3805302 4008310 5539353 6012465 6342170 7293810 9232255 9513255 11078706 12024930 14830747 18464510 19026510 27696765 29661494 44492241 55393530 68318687 74153735 88984482 112633511 136637374 148307470 204956061 222461205 225267022 337900533 341593435 409912122 444922410 563167555 675801066 683186870 1024780305 1126335110 1689502665 2049560610 3379005330 4167439907 8334879814 12502319721 20837199535 25004639442 41674399070 62511598605 125023197210