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10111229031 = 319251706733
BaseRepresentation
bin10010110101010110…
…10001110001100111
3222002200001122200010
421122223101301213
5131201433312111
64351154421303
7505365012561
oct113253216147
928080048603
1010111229031
114319586032
121b62291833
13c51a63077
146bcc38331
153e2a2eaa6
hex25aad1c67

10111229031 has 16 divisors (see below), whose sum is σ = 14247757440. Its totient is φ = 6360588000.

The previous prime is 10111229003. The next prime is 10111229053. The reversal of 10111229031 is 13092211101.

It is a happy number.

It is not a de Polignac number, because 10111229031 - 27 = 10111228903 is a prime.

It is a super-2 number, since 2×101112290312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10111228989 and 10111229007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111228031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339060 + ... + 367673.

It is an arithmetic number, because the mean of its divisors is an integer number (890484840).

Almost surely, 210111229031 is an apocalyptic number.

10111229031 is a deficient number, since it is larger than the sum of its proper divisors (4136528409).

10111229031 is a wasteful number, since it uses less digits than its factorization.

10111229031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707006.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 10111229031 in words is "ten billion, one hundred eleven million, two hundred twenty-nine thousand, thirty-one".

Divisors: 1 3 19 57 251 753 4769 14307 706733 2120199 13427927 40283781 177389983 532169949 3370409677 10111229031