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275423157 = 3230602573
BaseRepresentation
bin10000011010101…
…001111110110101
3201012020221112200
4100122221332311
51031002020112
643155135113
76553025652
oct2032517665
9635227480
10275423157
11131518549
12782a4499
13450a43a9
1428816c29
15192a6cdc
hex106a9fb5

275423157 has 6 divisors (see below), whose sum is σ = 397833462. Its totient is φ = 183615432.

The previous prime is 275423147. The next prime is 275423167. The reversal of 275423157 is 751324572.

It is an interprime number because it is at equal distance from previous prime (275423147) and next prime (275423167).

It can be written as a sum of positive squares in only one way, i.e., 268500996 + 6922161 = 16386^2 + 2631^2 .

It is not a de Polignac number, because 275423157 - 218 = 275161013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275423147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15301278 + ... + 15301295.

It is an arithmetic number, because the mean of its divisors is an integer number (66305577).

Almost surely, 2275423157 is an apocalyptic number.

It is an amenable number.

275423157 is a deficient number, since it is larger than the sum of its proper divisors (122410305).

275423157 is a wasteful number, since it uses less digits than its factorization.

275423157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30602579 (or 30602576 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 275423157 is about 16595.8777110462. The cubic root of 275423157 is about 650.6291005951.

The spelling of 275423157 in words is "two hundred seventy-five million, four hundred twenty-three thousand, one hundred fifty-seven".

Divisors: 1 3 9 30602573 91807719 275423157