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623960061 = 31713789303
BaseRepresentation
bin100101001100001…
…101111111111101
31121111002110021220
4211030031333331
52234213210221
6141525343553
721314400354
oct4514157775
91544073256
10623960061
112a023347a
12154b67bb9
139c36764a
145cc2299b
1539ba20c6
hex2530dffd

623960061 has 16 divisors (see below), whose sum is σ = 887324544. Its totient is φ = 388642304.

The previous prime is 623960059. The next prime is 623960069. The reversal of 623960061 is 160069326.

It is a happy number.

It is not a de Polignac number, because 623960061 - 21 = 623960059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623960069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37665 + ... + 51638.

It is an arithmetic number, because the mean of its divisors is an integer number (55457784).

Almost surely, 2623960061 is an apocalyptic number.

It is an amenable number.

623960061 is a deficient number, since it is larger than the sum of its proper divisors (263364483).

623960061 is a wasteful number, since it uses less digits than its factorization.

623960061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89460.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 623960061 is about 24979.1925610097. The cubic root of 623960061 is about 854.5135045708.

The spelling of 623960061 in words is "six hundred twenty-three million, nine hundred sixty thousand, sixty-one".

Divisors: 1 3 17 51 137 411 2329 6987 89303 267909 1518151 4554453 12234511 36703533 207986687 623960061