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55677948 = 22343107903
BaseRepresentation
bin1101010001100…
…1001111111100
310212202201210020
43110121033330
5103223143243
65305212140
71244153244
oct324311774
9125681706
1055677948
1129479737
1216791050
13b6c5941
147574b24
154d4c283
hex35193fc

55677948 has 24 divisors (see below), whose sum is σ = 132937728. Its totient is φ = 18127536.

The previous prime is 55677899. The next prime is 55677949. The reversal of 55677948 is 84977655.

It is a self number, because there is not a number n which added to its sum of digits gives 55677948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55677949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53436 + ... + 54467.

It is an arithmetic number, because the mean of its divisors is an integer number (5539072).

Almost surely, 255677948 is an apocalyptic number.

It is an amenable number.

55677948 is an abundant number, since it is smaller than the sum of its proper divisors (77259780).

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

55677948 is a wasteful number, since it uses less digits than its factorization.

55677948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107953 (or 107951 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The square root of 55677948 is about 7461.7657427716. The cubic root of 55677948 is about 381.8514174120.

The spelling of 55677948 in words is "fifty-five million, six hundred seventy-seven thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 516 107903 215806 323709 431612 647418 1294836 4639829 9279658 13919487 18559316 27838974 55677948