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52978195 = 561173699
BaseRepresentation
bin1100101000011…
…0001000010011
310200200120102101
43022012020103
5102030300240
65131301231
71212210244
oct312061023
9120616371
1052978195
11279a5336
12158aa817
13ac8bb5a
147070ccb
1549b739a
hex3286213

52978195 has 8 divisors (see below), whose sum is σ = 64616400. Its totient is φ = 41687520.

The previous prime is 52978187. The next prime is 52978201. The reversal of 52978195 is 59187925.

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

It is not a de Polignac number, because 52978195 - 23 = 52978187 is a prime.

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, 86545 + ... + 87154.

It is an arithmetic number, because the mean of its divisors is an integer number (8077050).

Almost surely, 252978195 is an apocalyptic number.

52978195 is a deficient number, since it is larger than the sum of its proper divisors (11638205).

52978195 is a wasteful number, since it uses less digits than its factorization.

52978195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173765.

The product of its digits is 226800, while the sum is 46.

The square root of 52978195 is about 7278.6121616693. The cubic root of 52978195 is about 375.5770552675.

The spelling of 52978195 in words is "fifty-two million, nine hundred seventy-eight thousand, one hundred ninety-five".

Divisors: 1 5 61 305 173699 868495 10595639 52978195