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53021429216 = 257238388289
BaseRepresentation
bin110001011000010100…
…101100110111100000
312001212011011200022122
4301120110230313200
51332041441213331
640205133123412
73554630466200
oct613024546740
9161764150278
1053021429216
112053923a598
12a338929568
134ccca18072
1427cdb14400
1515a4c6d17b
hexc5852cde0

53021429216 has 72 divisors (see below), whose sum is σ = 121746965760. Its totient is φ = 22663882752.

The previous prime is 53021429207. The next prime is 53021429221. The reversal of 53021429216 is 61292412035.

It is a super-2 number, since 2×530214292162 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 556400 + ... + 644688.

It is an arithmetic number, because the mean of its divisors is an integer number (1690930080).

Almost surely, 253021429216 is an apocalyptic number.

53021429216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53021429216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60873482880).

53021429216 is an abundant number, since it is smaller than the sum of its proper divisors (68725536544).

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

53021429216 is a wasteful number, since it uses less digits than its factorization.

53021429216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88696 (or 88681 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 53021429216 in words is "fifty-three billion, twenty-one million, four hundred twenty-nine thousand, two hundred sixteen".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 98 112 196 224 383 392 766 784 1532 1568 2681 3064 5362 6128 10724 12256 18767 21448 37534 42896 75068 85792 88289 150136 176578 300272 353156 600544 618023 706312 1236046 1412624 2472092 2825248 4326161 4944184 8652322 9888368 17304644 19776736 33814687 34609288 67629374 69218576 135258748 138437152 236702809 270517496 473405618 541034992 946811236 1082069984 1656919663 1893622472 3313839326 3787244944 6627678652 7574489888 13255357304 26510714608 53021429216