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61385902 = 2179171469
BaseRepresentation
bin1110101000101…
…0110010101110
311021111201121221
43222022302232
5111203322102
610031413554
71343525434
oct352126256
9137451557
1061385902
1131718156
12186842ba
13c943a26
14821cd54
1555c8637
hex3a8acae

61385902 has 8 divisors (see below), whose sum is σ = 92593800. Its totient is φ = 30521304.

The previous prime is 61385893. The next prime is 61385971. The reversal of 61385902 is 20958316.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85377 + ... + 86092.

It is an arithmetic number, because the mean of its divisors is an integer number (11574225).

Almost surely, 261385902 is an apocalyptic number.

61385902 is a deficient number, since it is larger than the sum of its proper divisors (31207898).

61385902 is a wasteful number, since it uses less digits than its factorization.

61385902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171650.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 61385902 is about 7834.9155707002. The cubic root of 61385902 is about 394.4780843947.

The spelling of 61385902 in words is "sixty-one million, three hundred eighty-five thousand, nine hundred two".

Divisors: 1 2 179 358 171469 342938 30692951 61385902