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3131920926 = 232612852387
BaseRepresentation
bin1011101010101101…
…0101001000011110
322002021021001211100
42322223111020132
522403232432201
61234435533530
7140416613541
oct27253251036
98067231740
103131920926
111367984602
12734a5a2a6
133abb23464
14219d46858
15134e51886
hexbaad521e

3131920926 has 24 divisors (see below), whose sum is σ = 6897074184. Its totient is φ = 1026858960.

The previous prime is 3131920919. The next prime is 3131920943. The reversal of 3131920926 is 6290291313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1425096 + ... + 1427291.

It is an arithmetic number, because the mean of its divisors is an integer number (287378091).

Almost surely, 23131920926 is an apocalyptic number.

3131920926 is an abundant number, since it is smaller than the sum of its proper divisors (3765153258).

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

3131920926 is a wasteful number, since it uses less digits than its factorization.

3131920926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852456 (or 2852453 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 3131920926 is about 55963.5678455189. The cubic root of 3131920926 is about 1463.0873751974.

The spelling of 3131920926 in words is "three billion, one hundred thirty-one million, nine hundred twenty thousand, nine hundred twenty-six".

Divisors: 1 2 3 6 9 18 61 122 183 366 549 1098 2852387 5704774 8557161 17114322 25671483 51342966 173995607 347991214 521986821 1043973642 1565960463 3131920926