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55127808 = 283271337
BaseRepresentation
bin1101001001001…
…0111100000000
310211201210010200
43102102330000
5103103042213
65245325200
71236402321
oct322227400
9124653120
1055127808
112913337a
1216566800
13b562408
147470448
154c8e273
hex3492f00

55127808 has 108 divisors (see below), whose sum is σ = 161664048. Its totient is φ = 18063360.

The previous prime is 55127783. The next prime is 55127837. The reversal of 55127808 is 80872155.

55127808 is a `hidden beast` number, since 551 + 27 + 80 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 163416 + ... + 163752.

Almost surely, 255127808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55127808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80832024).

55127808 is an abundant number, since it is smaller than the sum of its proper divisors (106536240).

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

55127808 is a wasteful number, since it uses less digits than its factorization.

55127808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 55127808 is about 7424.8103006070. The cubic root of 55127808 is about 380.5895925875.

The spelling of 55127808 in words is "fifty-five million, one hundred twenty-seven thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 71 72 96 128 142 144 192 213 256 284 288 337 384 426 568 576 639 674 768 852 1011 1136 1152 1278 1348 1704 2022 2272 2304 2556 2696 3033 3408 4044 4544 5112 5392 6066 6816 8088 9088 10224 10784 12132 13632 16176 18176 20448 21568 23927 24264 27264 32352 40896 43136 47854 48528 54528 64704 71781 81792 86272 95708 97056 129408 143562 163584 191416 194112 215343 258816 287124 382832 388224 430686 574248 765664 776448 861372 1148496 1531328 1722744 2296992 3062656 3445488 4593984 6125312 6890976 9187968 13781952 18375936 27563904 55127808