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61395086 = 230697543
BaseRepresentation
bin1110101000110…
…1000010001110
311021112012020002
43222031002032
5111204120321
610031524302
71343564264
oct352150216
9137465202
1061395086
1131724045
1218689692
13c947c6c
148222434
1555cb20b
hex3a8d08e

61395086 has 4 divisors (see below), whose sum is σ = 92092632. Its totient is φ = 30697542.

The previous prime is 61395079. The next prime is 61395121. The reversal of 61395086 is 68059316.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15348770 + ... + 15348773.

It is an arithmetic number, because the mean of its divisors is an integer number (23023158).

Almost surely, 261395086 is an apocalyptic number.

61395086 is a deficient number, since it is larger than the sum of its proper divisors (30697546).

61395086 is a wasteful number, since it uses less digits than its factorization.

61395086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30697545.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 61395086 is about 7835.5016431624. The cubic root of 61395086 is about 394.4977561540.

The spelling of 61395086 in words is "sixty-one million, three hundred ninety-five thousand, eighty-six".

Divisors: 1 2 30697543 61395086