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54246140 = 225131979139
BaseRepresentation
bin1100111011101…
…1101011111100
310210001222201022
43032323223330
5102341334030
65214403312
71226041004
oct316735374
9123058638
1054246140
1128690a23
1216200538
13b314010
1472c1004
154b67de5
hex33bbafc

54246140 has 96 divisors (see below), whose sum is σ = 131712000. Its totient is φ = 18600192.

The previous prime is 54246119. The next prime is 54246149. The reversal of 54246140 is 4164245.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54246149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390191 + ... + 390329.

It is an arithmetic number, because the mean of its divisors is an integer number (1372000).

Almost surely, 254246140 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 54246140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65856000).

54246140 is an abundant number, since it is smaller than the sum of its proper divisors (77465860).

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

54246140 is a wasteful number, since it uses less digits than its factorization.

54246140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 54246140 is about 7365.1978927928. The cubic root of 54246140 is about 378.5497352841.

The spelling of 54246140 in words is "fifty-four million, two hundred forty-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 79 95 130 139 158 190 247 260 278 316 380 395 494 556 695 790 988 1027 1235 1390 1501 1580 1807 2054 2470 2641 2780 3002 3614 4108 4940 5135 5282 6004 7228 7505 9035 10270 10564 10981 13205 15010 18070 19513 20540 21962 26410 30020 34333 36140 39026 43924 52820 54905 68666 78052 97565 109810 137332 142753 171665 195130 208639 219620 285506 343330 390260 417278 571012 686660 713765 834556 1043195 1427530 2086390 2712307 2855060 4172780 5424614 10849228 13561535 27123070 54246140