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56309950 = 25217312137
BaseRepresentation
bin1101011011001…
…1100010111110
310220221211201201
43112303202332
5103403404300
65330530114
71252424644
oct326634276
9126854651
1056309950
1129870554
1216a3693a
13b8874c8
14769b194
154e2466a
hex35b38be

56309950 has 48 divisors (see below), whose sum is σ = 114528384. Its totient is φ = 20505600.

The previous prime is 56309941. The next prime is 56309951. The reversal of 56309950 is 5990365.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56309951) 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, 25282 + ... + 27418.

It is an arithmetic number, because the mean of its divisors is an integer number (2386008).

Almost surely, 256309950 is an apocalyptic number.

56309950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56309950 is an abundant number, since it is smaller than the sum of its proper divisors (58218434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56309950 is a wasteful number, since it uses less digits than its factorization.

56309950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2197 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 56309950 is about 7503.9956023441. The cubic root of 56309950 is about 383.2907871284.

The spelling of 56309950 in words is "fifty-six million, three hundred nine thousand, nine hundred fifty".

Divisors: 1 2 5 10 17 25 31 34 50 62 85 155 170 310 425 527 775 850 1054 1550 2137 2635 4274 5270 10685 13175 21370 26350 36329 53425 66247 72658 106850 132494 181645 331235 363290 662470 908225 1126199 1656175 1816450 2252398 3312350 5630995 11261990 28154975 56309950