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55230492 = 22319376547
BaseRepresentation
bin1101001010110…
…0000000011100
310211220222222210
43102230000130
5103114333432
65251440420
71240310562
oct322540034
9124828883
1055230492
11291a3539
12165b6110
13b59a085
147499a32
154cae8cc
hex34ac01c

55230492 has 48 divisors (see below), whose sum is σ = 139341440. Its totient is φ = 16967232.

The previous prime is 55230491. The next prime is 55230493. The reversal of 55230492 is 29403255.

It is an interprime number because it is at equal distance from previous prime (55230491) and next prime (55230493).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55230491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5163 + ... + 11709.

Almost surely, 255230492 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 55230492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69670720).

55230492 is an abundant number, since it is smaller than the sum of its proper divisors (84110948).

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

55230492 is a wasteful number, since it uses less digits than its factorization.

55230492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610 (or 6608 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55230492 is about 7431.7220077180. The cubic root of 55230492 is about 380.8257481913.

The spelling of 55230492 in words is "fifty-five million, two hundred thirty thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 19 37 38 57 74 76 111 114 148 222 228 444 703 1406 2109 2812 4218 6547 8436 13094 19641 26188 39282 78564 124393 242239 248786 373179 484478 497572 726717 746358 968956 1453434 1492716 2906868 4602541 9205082 13807623 18410164 27615246 55230492