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31055362201 = 227136807763
BaseRepresentation
bin11100111011000010…
…110011100010011001
32222011022010212011001
4130323002303202121
51002100133042301
622133332105001
72146403136403
oct347302634231
988138125131
1031055362201
1112196a402a6
126028465161
132c0bc17286
141708687b73
15c1b5e3c01
hex73b0b3899

31055362201 has 4 divisors (see below), whose sum is σ = 31192170192. Its totient is φ = 30918554212.

The previous prime is 31055362171. The next prime is 31055362241. The reversal of 31055362201 is 10226355013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31055362201 - 231 = 28907878553 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31055362201.

It is not an unprimeable number, because it can be changed into a prime (31055362241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68403655 + ... + 68404108.

It is an arithmetic number, because the mean of its divisors is an integer number (7798042548).

Almost surely, 231055362201 is an apocalyptic number.

It is an amenable number.

31055362201 is a deficient number, since it is larger than the sum of its proper divisors (136807991).

31055362201 is a wasteful number, since it uses less digits than its factorization.

31055362201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136807990.

The product of its (nonzero) digits is 5400, while the sum is 28.

The spelling of 31055362201 in words is "thirty-one billion, fifty-five million, three hundred sixty-two thousand, two hundred one".

Divisors: 1 227 136807763 31055362201