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55806948 = 22334361197
BaseRepresentation
bin1101010011100…
…0101111100100
310220000021202000
43110320233210
5103241310243
65312045300
71245231321
oct324705744
9126007660
1055806948
112955764a
1216833830
13b73c582
1475a9b48
154d755d3
hex3538be4

55806948 has 96 divisors (see below), whose sum is σ = 151240320. Its totient is φ = 17781120.

The previous prime is 55806893. The next prime is 55806977. The reversal of 55806948 is 84960855.

55806948 is a `hidden beast` number, since 5 + 580 + 69 + 4 + 8 = 666.

It is a super-2 number, since 2×558069482 = 6228830890149408, which contains 22 as substring.

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, 283186 + ... + 283382.

It is an arithmetic number, because the mean of its divisors is an integer number (1575420).

Almost surely, 255806948 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 55806948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75620160).

55806948 is an abundant number, since it is smaller than the sum of its proper divisors (95433372).

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

55806948 is a wasteful number, since it uses less digits than its factorization.

55806948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 55806948 is about 7470.4048083086. The cubic root of 55806948 is about 382.1460932575.

The spelling of 55806948 in words is "fifty-five million, eight hundred six thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 43 54 61 86 108 122 129 172 183 197 244 258 366 387 394 516 549 591 732 774 788 1098 1161 1182 1548 1647 1773 2196 2322 2364 2623 3294 3546 4644 5246 5319 6588 7092 7869 8471 10492 10638 12017 15738 16942 21276 23607 24034 25413 31476 33884 36051 47214 48068 50826 70821 72102 76239 94428 101652 108153 141642 144204 152478 216306 228717 283284 304956 324459 432612 457434 516731 648918 914868 1033462 1297836 1550193 2066924 3100386 4650579 6200772 9301158 13951737 18602316 27903474 55806948