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31102032122 = 273177008119
BaseRepresentation
bin11100111101110100…
…110101100011111010
32222021112221221020122
4130331310311203322
51002144110011442
622142120253242
72150510624330
oct347564654372
988245857218
1031102032122
1112210317087
126040011222
132c187a7a05
141710955b50
15c20761dd2
hex73dd358fa

31102032122 has 16 divisors (see below), whose sum is σ = 53485971840. Its totient is φ = 13287391728.

The previous prime is 31102032103. The next prime is 31102032149. The reversal of 31102032122 is 22123020113.

It is a self number, because there is not a number n which added to its sum of digits gives 31102032122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3499622 + ... + 3508497.

It is an arithmetic number, because the mean of its divisors is an integer number (3342873240).

Almost surely, 231102032122 is an apocalyptic number.

31102032122 is a deficient number, since it is larger than the sum of its proper divisors (22383939718).

31102032122 is a wasteful number, since it uses less digits than its factorization.

31102032122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7008445.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31102032122 its reverse (22123020113), we get a palindrome (53225052235).

The spelling of 31102032122 in words is "thirty-one billion, one hundred two million, thirty-two thousand, one hundred twenty-two".

Divisors: 1 2 7 14 317 634 2219 4438 7008119 14016238 49056833 98113666 2221573723 4443147446 15551016061 31102032122