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10407985920 = 28335614937
BaseRepresentation
bin10011011000101110…
…10100001100000000
3222212100110110121000
421230113110030000
5132303421022140
64440435132000
7515630264163
oct115427241400
928770413530
1010407985920
114461044962
122025744000
13c9b396967
1470a405ada
1540daeca30
hex26c5d4300

10407985920 has 288 divisors, whose sum is σ = 37546971840. Its totient is φ = 2729410560.

The previous prime is 10407985843. The next prime is 10407986011. The reversal of 10407985920 is 2958970401.

10407985920 is a `hidden beast` number, since 10 + 40 + 7 + 9 + 8 + 592 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2105692 + ... + 2110628.

It is an arithmetic number, because the mean of its divisors is an integer number (130371430).

Almost surely, 210407985920 is an apocalyptic number.

10407985920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10407985920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18773485920).

10407985920 is an abundant number, since it is smaller than the sum of its proper divisors (27138985920).

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

10407985920 is an equidigital number, since it uses as much as digits as its factorization.

10407985920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028 (or 5008 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 10407985920 in words is "ten billion, four hundred seven million, nine hundred eighty-five thousand, nine hundred twenty".