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253968792 = 233711532593
BaseRepresentation
bin11110010001101…
…00000110011000
3122200212221200120
433020310012120
51010004000132
641111233240
76202461540
oct1710640630
9580787616
10253968792
111203a4570
1271078820
1340801cbc
1425a30320
151746a02c
hexf234198

253968792 has 128 divisors (see below), whose sum is σ = 806837760. Its totient is φ = 64696320.

The previous prime is 253968791. The next prime is 253968811. The reversal of 253968792 is 297869352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253968791) 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, 96648 + ... + 99240.

It is an arithmetic number, because the mean of its divisors is an integer number (6303420).

Almost surely, 2253968792 is an apocalyptic number.

253968792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253968792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403418880).

253968792 is an abundant number, since it is smaller than the sum of its proper divisors (552868968).

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

253968792 is a wasteful number, since it uses less digits than its factorization.

253968792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673 (or 2669 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 51.

The square root of 253968792 is about 15936.3983383950. The cubic root of 253968792 is about 633.2766149269.

The spelling of 253968792 in words is "two hundred fifty-three million, nine hundred sixty-eight thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 11 12 14 21 22 24 28 33 42 44 53 56 66 77 84 88 106 132 154 159 168 212 231 264 308 318 371 424 462 583 616 636 742 924 1113 1166 1272 1484 1749 1848 2226 2332 2593 2968 3498 4081 4452 4664 5186 6996 7779 8162 8904 10372 12243 13992 15558 16324 18151 20744 24486 28523 31116 32648 36302 48972 54453 57046 62232 72604 85569 97944 108906 114092 137429 145208 171138 199661 217812 228184 274858 342276 399322 412287 435624 549716 598983 684552 798644 824574 962003 1099432 1197966 1511719 1597288 1649148 1924006 2395932 2886009 3023438 3298296 3848012 4535157 4791864 5772018 6046876 7696024 9070314 10582033 11544036 12093752 18140628 21164066 23088072 31746099 36281256 42328132 63492198 84656264 126984396 253968792