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992415031 = 7213137587
BaseRepresentation
bin111011001001110…
…000110100110111
32120011101220111021
4323021300310313
54013024240111
6242250522011
733410250166
oct7311606467
92504356437
10992415031
1146a213113
12238436307
1312a7b293a
1495b353dd
155c1d3d71
hex3b270d37

992415031 has 4 divisors (see below), whose sum is σ = 992559832. Its totient is φ = 992270232.

The previous prime is 992415029. The next prime is 992415043. The reversal of 992415031 is 130514299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 992415031 - 21 = 992415029 is a prime.

It is a super-2 number, since 2×9924150312 = 1969775187509461922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992415331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61581 + ... + 76006.

It is an arithmetic number, because the mean of its divisors is an integer number (248139958).

Almost surely, 2992415031 is an apocalyptic number.

992415031 is a deficient number, since it is larger than the sum of its proper divisors (144801).

992415031 is a wasteful number, since it uses less digits than its factorization.

992415031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144800.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 992415031 is about 31502.6194307711. The cubic root of 992415031 is about 997.4652575090.

The spelling of 992415031 in words is "nine hundred ninety-two million, four hundred fifteen thousand, thirty-one".

Divisors: 1 7213 137587 992415031