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1030507920 = 24345132941
BaseRepresentation
bin111101011011000…
…100110110010000
32122211002020010000
4331123010312100
54102302223140
6250131210000
734352113161
oct7533046620
92584066100
101030507920
11489770942
12249146900
1313565c400
149ac0d768
156070aa30
hex3d6c4d90

1030507920 has 300 divisors, whose sum is σ = 3879719316. Its totient is φ = 253393920.

The previous prime is 1030507913. The next prime is 1030507937. The reversal of 1030507920 is 297050301.

1030507920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 156950784 + 873557136 = 12528^2 + 29556^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1094650 + ... + 1095590.

Almost surely, 21030507920 is an apocalyptic number.

1030507920 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 1030507920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1939859658).

1030507920 is an abundant number, since it is smaller than the sum of its proper divisors (2849211396).

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

1030507920 is a wasteful number, since it uses less digits than its factorization.

1030507920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 1030507920 is about 32101.5251974108. The cubic root of 1030507920 is about 1010.0676097603.

The spelling of 1030507920 in words is "one billion, thirty million, five hundred seven thousand, nine hundred twenty".