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54812380 = 2257255931
BaseRepresentation
bin1101000100010…
…1111011011100
310211010202110011
43101011323130
5103012444010
65234453004
71233616600
oct321057334
9124122404
1054812380
1128a38397
1216434164
13b48197c
1473cb500
154c2aa8a
hex3445edc

54812380 has 36 divisors (see below), whose sum is σ = 133901208. Its totient is φ = 18792480.

The previous prime is 54812353. The next prime is 54812383. The reversal of 54812380 is 8321845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54812383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26986 + ... + 28945.

It is an arithmetic number, because the mean of its divisors is an integer number (3719478).

Almost surely, 254812380 is an apocalyptic number.

It is an amenable number.

54812380 is an abundant number, since it is smaller than the sum of its proper divisors (79088828).

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

54812380 is a wasteful number, since it uses less digits than its factorization.

54812380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55954 (or 55945 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 54812380 is about 7403.5383432518. The cubic root of 54812380 is about 379.8623231625.

The spelling of 54812380 in words is "fifty-four million, eight hundred twelve thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 55931 111862 223724 279655 391517 559310 783034 1118620 1566068 1957585 2740619 3915170 5481238 7830340 10962476 13703095 27406190 54812380