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61290046 = 21092631069
BaseRepresentation
bin1110100111001…
…1011000111110
311021022212010201
43221303120332
5111142240141
610025354114
71342646116
oct351633076
9137285121
1061290046
1131662134
121863893a
13c90c1cc
1481d6046
1555aa031
hex3a7363e

61290046 has 16 divisors (see below), whose sum is σ = 93218400. Its totient is φ = 30220128.

The previous prime is 61290041. The next prime is 61290109. The reversal of 61290046 is 64009216.

It is a junction number, because it is equal to n+sod(n) for n = 61289996 and 61290023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61290041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56800 + ... + 57868.

It is an arithmetic number, because the mean of its divisors is an integer number (5826150).

Almost surely, 261290046 is an apocalyptic number.

61290046 is a deficient number, since it is larger than the sum of its proper divisors (31928354).

61290046 is a wasteful number, since it uses less digits than its factorization.

61290046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 61290046 is about 7828.7959482924. The cubic root of 61290046 is about 394.2726474826.

The spelling of 61290046 in words is "sixty-one million, two hundred ninety thousand, forty-six".

Divisors: 1 2 109 218 263 526 1069 2138 28667 57334 116521 233042 281147 562294 30645023 61290046