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1029495685 = 51071924291
BaseRepresentation
bin111101010111001…
…101101110000101
32122202011210120211
4331113031232011
54102022330220
6250053355421
734340366101
oct7527155605
92582153524
101029495685
1148913a389
12248938b71
1313539675a
149aa28901
15605aab5a
hex3d5cdb85

1029495685 has 8 divisors (see below), whose sum is σ = 1246941216. Its totient is φ = 815898960.

The previous prime is 1029495619. The next prime is 1029495697. The reversal of 1029495685 is 5865949201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1029495685 - 27 = 1029495557 is a prime.

It is a super-2 number, since 2×10294956852 = 2119722730867238450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 961611 + ... + 962680.

It is an arithmetic number, because the mean of its divisors is an integer number (155867652).

Almost surely, 21029495685 is an apocalyptic number.

It is an amenable number.

1029495685 is a deficient number, since it is larger than the sum of its proper divisors (217445531).

1029495685 is a wasteful number, since it uses less digits than its factorization.

1029495685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924403.

The product of its (nonzero) digits is 777600, while the sum is 49.

The square root of 1029495685 is about 32085.7551726619. The cubic root of 1029495685 is about 1009.7367823707.

The spelling of 1029495685 in words is "one billion, twenty-nine million, four hundred ninety-five thousand, six hundred eighty-five".

Divisors: 1 5 107 535 1924291 9621455 205899137 1029495685