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31000140122 = 272214295723
BaseRepresentation
bin11100110111110000…
…001001100101011010
32222000110020021200212
4130313300021211122
51001442013440442
622124040331122
72145132562160
oct346760114532
988013207625
1031000140122
1112168853116
126011a73aa2
132c00650ca3
1417011d1230
15c16836a82
hex737c0995a

31000140122 has 8 divisors (see below), whose sum is σ = 53143097376. Its totient is φ = 13285774332.

The previous prime is 31000140107. The next prime is 31000140133. The reversal of 31000140122 is 22104100013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×310001401222 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 2214295723 = 31000140122 / (3 + 1 + 0 + 0 + 0 + 1 + 4 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 31000140097 and 31000140106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107147848 + ... + 1107147875.

It is an arithmetic number, because the mean of its divisors is an integer number (6642887172).

Almost surely, 231000140122 is an apocalyptic number.

31000140122 is a deficient number, since it is larger than the sum of its proper divisors (22142957254).

31000140122 is a wasteful number, since it uses less digits than its factorization.

31000140122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214295732.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31000140122 its reverse (22104100013), we get a palindrome (53104240135).

The spelling of 31000140122 in words is "thirty-one billion, one hundred forty thousand, one hundred twenty-two".

Divisors: 1 2 7 14 2214295723 4428591446 15500070061 31000140122