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31100020220010 = 2357314777268851
BaseRepresentation
bin1110001001001000010011…
…01010000110000001101010
311002010010120212210210212010
413010210021222012001222
513034020320134020020
6150051052502100350
76356621331110220
oct704441152060152
9132103525723763
1031100020220010
119a004987026a5
1235a3485a1a6b6
131447947476b11
1479736b3d8b10
1538deb2420de0
hex1c4909a8606a

31100020220010 has 64 divisors (see below), whose sum is σ = 88054619480064. Its totient is φ = 6879267144000.

The previous prime is 31100020219951. The next prime is 31100020220029. The reversal of 31100020220010 is 1002202000113.

It is a super-2 number, since 2×311000202200102 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2388627916 + ... + 2388640935.

It is an arithmetic number, because the mean of its divisors is an integer number (1375853429376).

Almost surely, 231100020220010 is an apocalyptic number.

31100020220010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31100020220010 is an abundant number, since it is smaller than the sum of its proper divisors (56954599260054).

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

31100020220010 is a wasteful number, since it uses less digits than its factorization.

31100020220010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777268899.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 31100020220010 its reverse (1002202000113), we get a palindrome (32102222220123).

The spelling of 31100020220010 in words is "thirty-one trillion, one hundred billion, twenty million, two hundred twenty thousand, ten".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 31 35 42 62 70 93 105 155 186 210 217 310 434 465 651 930 1085 1302 2170 3255 6510 4777268851 9554537702 14331806553 23886344255 28663613106 33440881957 47772688510 66881763914 71659032765 100322645871 143318065530 148095334381 167204409785 200645291742 296190668762 334408819570 444286003143 501613229355 740476671905 888572006286 1003226458710 1036667340667 1480953343810 2073334681334 2221430015715 3110002022001 4442860031430 5183336703335 6220004044002 10366673406670 15550010110005 31100020220010