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69802130 = 2529313769
BaseRepresentation
bin1000010100100…
…01100010010010
311212100022112002
410022101202102
5120332132010
610532034002
71505210516
oct412214222
9155308462
1069802130
1136446412
121b462902
13115cc748
1493b0146
1561dc1a5
hex4291892

69802130 has 32 divisors (see below), whose sum is σ = 130561200. Its totient is φ = 26836992.

The previous prime is 69802099. The next prime is 69802147. The reversal of 69802130 is 3120896.

It can be written as a sum of positive squares in 8 ways, for example, as 6869641 + 62932489 = 2621^2 + 7933^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 69802093 and 69802102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90386 + ... + 91154.

Almost surely, 269802130 is an apocalyptic number.

69802130 is a deficient number, since it is larger than the sum of its proper divisors (60759070).

69802130 is a wasteful number, since it uses less digits than its factorization.

69802130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 69802130 is about 8354.7669027927. The cubic root of 69802130 is about 411.7398403112.

The spelling of 69802130 in words is "sixty-nine million, eight hundred two thousand, one hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 313 626 769 1538 1565 3130 3845 7690 9077 18154 22301 44602 45385 90770 111505 223010 240697 481394 1203485 2406970 6980213 13960426 34901065 69802130