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2131031202 = 233111457157
BaseRepresentation
bin111111100000100…
…1111010010100010
312111111220121020120
41333001033102202
513331020444302
6551243221110
7103544315646
oct17701172242
95444817216
102131031202
119a3a03313
124b5817796
1327c664311
14163046c26
15c71469bc
hex7f04f4a2

2131031202 has 16 divisors (see below), whose sum is σ = 4399548672. Its totient is φ = 687429360.

The previous prime is 2131031197. The next prime is 2131031237. The reversal of 2131031202 is 2021301312.

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, 5728393 + ... + 5728764.

It is an arithmetic number, because the mean of its divisors is an integer number (274971792).

Almost surely, 22131031202 is an apocalyptic number.

2131031202 is an abundant number, since it is smaller than the sum of its proper divisors (2268517470).

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

2131031202 is a wasteful number, since it uses less digits than its factorization.

2131031202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457193.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2131031202 is about 46163.0935055267. The cubic root of 2131031202 is about 1286.8559537740.

Adding to 2131031202 its reverse (2021301312), we get a palindrome (4152332514).

The spelling of 2131031202 in words is "two billion, one hundred thirty-one million, thirty-one thousand, two hundred two".

Divisors: 1 2 3 6 31 62 93 186 11457157 22914314 34371471 68742942 355171867 710343734 1065515601 2131031202