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2157013325 = 52312783243
BaseRepresentation
bin1000000010010001…
…0110100101001101
312120022210122000102
42000210112211031
513404143411300
6554012140445
7104311211405
oct20044264515
95508718012
102157013325
11a0763a045
12502467725
13284b6055c
1416668b805
15c957a0d5
hex8091694d

2157013325 has 12 divisors (see below), whose sum is σ = 2760978048. Its totient is φ = 1669945200.

The previous prime is 2157013319. The next prime is 2157013349. The reversal of 2157013325 is 5233107512.

It is not a de Polignac number, because 2157013325 - 216 = 2156947789 is a prime.

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, 1390847 + ... + 1392396.

It is an arithmetic number, because the mean of its divisors is an integer number (230081504).

Almost surely, 22157013325 is an apocalyptic number.

2157013325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2157013325 is a deficient number, since it is larger than the sum of its proper divisors (603964723).

2157013325 is a wasteful number, since it uses less digits than its factorization.

2157013325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783284 (or 2783279 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 2157013325 is about 46443.6575325415. The cubic root of 2157013325 is about 1292.0647432547.

The spelling of 2157013325 in words is "two billion, one hundred fifty-seven million, thirteen thousand, three hundred twenty-five".

Divisors: 1 5 25 31 155 775 2783243 13916215 69581075 86280533 431402665 2157013325