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7828308525 = 352104377447
BaseRepresentation
bin1110100101001101…
…01000001000101101
3202012120100021110210
413102212220020231
5112013021333100
63332443453033
7364664344632
oct72246501055
922176307423
107828308525
113357970074
121625827179
13979abac2b
14543974189
1530c3d3c50
hex1d29a822d

7828308525 has 12 divisors (see below), whose sum is σ = 12942803552. Its totient is φ = 4175097840.

The previous prime is 7828308457. The next prime is 7828308539. The reversal of 7828308525 is 5258038287.

It is not a de Polignac number, because 7828308525 - 227 = 7694090797 is a prime.

It is a super-2 number, since 2×78283085252 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52188649 + ... + 52188798.

Almost surely, 27828308525 is an apocalyptic number.

7828308525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7828308525 is a deficient number, since it is larger than the sum of its proper divisors (5114495027).

7828308525 is a wasteful number, since it uses less digits than its factorization.

7828308525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104377460 (or 104377455 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The square root of 7828308525 is about 88477.7289774099. The cubic root of 7828308525 is about 1985.5887849374.

The spelling of 7828308525 in words is "seven billion, eight hundred twenty-eight million, three hundred eight thousand, five hundred twenty-five".

Divisors: 1 3 5 15 25 75 104377447 313132341 521887235 1565661705 2609436175 7828308525