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54345228 = 22372321223
BaseRepresentation
bin1100111101001…
…1111000001100
310210021000122020
43033103320030
5102403021403
65220450140
71226632620
oct317237014
9123230566
1054345228
1128749413
1216249950
13b34a152
147309180
154b87453
hex33d3e0c

54345228 has 72 divisors (see below), whose sum is σ = 151619328. Its totient is φ = 14839968.

The previous prime is 54345227. The next prime is 54345229. The reversal of 54345228 is 82254345.

It is an interprime number because it is at equal distance from previous prime (54345227) and next prime (54345229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54345223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43825 + ... + 45047.

It is an arithmetic number, because the mean of its divisors is an integer number (2105824).

Almost surely, 254345228 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 54345228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75809664).

54345228 is an abundant number, since it is smaller than the sum of its proper divisors (97274100).

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

54345228 is a wasteful number, since it uses less digits than its factorization.

54345228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283 (or 1258 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 54345228 is about 7371.9215948082. The cubic root of 54345228 is about 378.7800860545.

The spelling of 54345228 in words is "fifty-four million, three hundred forty-five thousand, two hundred twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 529 644 966 1058 1223 1587 1932 2116 2446 3174 3669 3703 4892 6348 7338 7406 8561 11109 14676 14812 17122 22218 25683 28129 34244 44436 51366 56258 84387 102732 112516 168774 196903 337548 393806 590709 646967 787612 1181418 1293934 1940901 2362836 2587868 3881802 4528769 7763604 9057538 13586307 18115076 27172614 54345228