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55267492 = 2272377621
BaseRepresentation
bin1101001011010…
…1000010100100
310211222212202011
43102311002210
5103122024432
65252324004
71240523500
oct322650244
9124885664
1055267492
1129219315
1216613604
13b5b0b77
1474a9300
154cba847
hex34b50a4

55267492 has 36 divisors (see below), whose sum is σ = 115564764. Its totient is φ = 23042880.

The previous prime is 55267489. The next prime is 55267501. The reversal of 55267492 is 29476255.

It can be written as a sum of positive squares in 2 ways, for example, as 49196196 + 6071296 = 7014^2 + 2464^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3442 + ... + 11062.

Almost surely, 255267492 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 55267492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57782382).

55267492 is an abundant number, since it is smaller than the sum of its proper divisors (60297272).

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

55267492 is a wasteful number, since it uses less digits than its factorization.

55267492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7676 (or 7667 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 55267492 is about 7434.2109197951. The cubic root of 55267492 is about 380.9107701108.

The spelling of 55267492 in words is "fifty-five million, two hundred sixty-seven thousand, four hundred ninety-two".

Divisors: 1 2 4 7 14 28 37 49 74 98 148 196 259 518 1036 1813 3626 7252 7621 15242 30484 53347 106694 213388 281977 373429 563954 746858 1127908 1493716 1973839 3947678 7895356 13816873 27633746 55267492