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50145445 = 5731113409
BaseRepresentation
bin1011111101001…
…0100010100101
310111100122121201
42333102202211
5100314123240
64550442501
71146141430
oct277224245
9114318551
1050145445
1126340019
1214963431
13a50967c
146934817
154607d9a
hex2fd28a5

50145445 has 32 divisors (see below), whose sum is σ = 71792640. Its totient is φ = 32901120.

The previous prime is 50145409. The next prime is 50145493. The reversal of 50145445 is 54454105.

It is not a de Polignac number, because 50145445 - 215 = 50112677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122401 + ... + 122809.

It is an arithmetic number, because the mean of its divisors is an integer number (2243520).

Almost surely, 250145445 is an apocalyptic number.

It is an amenable number.

50145445 is a deficient number, since it is larger than the sum of its proper divisors (21647195).

50145445 is a wasteful number, since it uses less digits than its factorization.

50145445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 50145445 is about 7081.3448581467. The cubic root of 50145445 is about 368.7600200284.

The spelling of 50145445 in words is "fifty million, one hundred forty-five thousand, four hundred forty-five".

Divisors: 1 5 7 31 35 113 155 217 409 565 791 1085 2045 2863 3503 3955 12679 14315 17515 24521 46217 63395 88753 122605 231085 323519 443765 1432727 1617595 7163635 10029089 50145445