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50312961 = 332278209
BaseRepresentation
bin1011111111101…
…1011100000001
310111200011102000
42333323130001
5100340003321
64554214213
71150440006
oct277733401
9114604360
1050312961
1126444966
1214a24369
13a5679aa
1469798ad
15463c826
hex2ffb701

50312961 has 16 divisors (see below), whose sum is σ = 74875200. Its totient is φ = 33390144.

The previous prime is 50312959. The next prime is 50312963. The reversal of 50312961 is 16921305.

It is an interprime number because it is at equal distance from previous prime (50312959) and next prime (50312963).

It is not a de Polignac number, because 50312961 - 21 = 50312959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50312963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2025 + ... + 10233.

It is an arithmetic number, because the mean of its divisors is an integer number (4679700).

Almost surely, 250312961 is an apocalyptic number.

It is an amenable number.

50312961 is a deficient number, since it is larger than the sum of its proper divisors (24562239).

50312961 is a wasteful number, since it uses less digits than its factorization.

50312961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8445 (or 8439 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 50312961 is about 7093.1629757112. The cubic root of 50312961 is about 369.1701905123.

The spelling of 50312961 in words is "fifty million, three hundred twelve thousand, nine hundred sixty-one".

Divisors: 1 3 9 27 227 681 2043 6129 8209 24627 73881 221643 1863443 5590329 16770987 50312961