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61394307 = 3139716229
BaseRepresentation
bin1110101000110…
…0110110000011
311021112011011020
43222030312003
5111204104212
610031520523
71343562102
oct352146603
9137464136
1061394307
11317234a7
1218689143
13c9477c0
148222039
1555cad8c
hex3a8cd83

61394307 has 16 divisors (see below), whose sum is σ = 89070240. Its totient is φ = 37389312.

The previous prime is 61394287. The next prime is 61394309. The reversal of 61394307 is 70349316.

61394307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61394307 - 28 = 61394051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61394309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4332 + ... + 11897.

It is an arithmetic number, because the mean of its divisors is an integer number (5566890).

Almost surely, 261394307 is an apocalyptic number.

61394307 is a deficient number, since it is larger than the sum of its proper divisors (27675933).

61394307 is a wasteful number, since it uses less digits than its factorization.

61394307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16342.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 61394307 is about 7835.4519333603. The cubic root of 61394307 is about 394.4960876434.

The spelling of 61394307 in words is "sixty-one million, three hundred ninety-four thousand, three hundred seven".

Divisors: 1 3 13 39 97 291 1261 3783 16229 48687 210977 632931 1574213 4722639 20464769 61394307