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49290031 = 723137877
BaseRepresentation
bin1011110000000…
…1101100101111
310102202012012201
42330001230233
5100104240111
64520242331
71135646500
oct274015457
9112665181
1049290031
112590636a
12146103a7
13a29a1cb
146790ba7
1544d96c1
hex2f01b2f

49290031 has 24 divisors (see below), whose sum is σ = 60855936. Its totient is φ = 39735360.

The previous prime is 49290011. The next prime is 49290041. The reversal of 49290031 is 13009294.

It is a happy number.

It is not a de Polignac number, because 49290031 - 211 = 49287983 is a prime.

It is a super-2 number, since 2×492900312 = 4859014311961922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49290001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55765 + ... + 56641.

It is an arithmetic number, because the mean of its divisors is an integer number (2535664).

Almost surely, 249290031 is an apocalyptic number.

49290031 is a deficient number, since it is larger than the sum of its proper divisors (11565905).

49290031 is a wasteful number, since it uses less digits than its factorization.

49290031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 952 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 49290031 is about 7020.6859351491. The cubic root of 49290031 is about 366.6511322161.

The spelling of 49290031 in words is "forty-nine million, two hundred ninety thousand, thirty-one".

Divisors: 1 7 31 37 49 217 259 877 1147 1519 1813 6139 8029 27187 32449 42973 56203 190309 227143 1005919 1332163 1590001 7041433 49290031