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61368601 = 78766943
BaseRepresentation
bin1110101000011…
…0100100011001
311021110211220011
43222012210121
5111202243401
610031201521
71343424130
oct352064431
9137424804
1061368601
1131706158
12186762a1
13c938ba8
148216917
1555c3451
hex3a86919

61368601 has 4 divisors (see below), whose sum is σ = 70135552. Its totient is φ = 52601652.

The previous prime is 61368569. The next prime is 61368661. The reversal of 61368601 is 10686316.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 61368601 - 25 = 61368569 is a prime.

It is a super-2 number, since 2×613686012 = 7532210377394402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61368661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4383465 + ... + 4383478.

It is an arithmetic number, because the mean of its divisors is an integer number (17533888).

Almost surely, 261368601 is an apocalyptic number.

It is an amenable number.

61368601 is a deficient number, since it is larger than the sum of its proper divisors (8766951).

61368601 is an equidigital number, since it uses as much as digits as its factorization.

61368601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8766950.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 61368601 is about 7833.8113967596. The cubic root of 61368601 is about 394.4410210170.

The spelling of 61368601 in words is "sixty-one million, three hundred sixty-eight thousand, six hundred one".

Divisors: 1 7 8766943 61368601