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231075264 = 2637199049
BaseRepresentation
bin11011100010111…
…10110111000000
3121002210211200010
431301132313000
5433123402024
634532424520
75504051550
oct1561366700
9532724603
10231075264
111094882a2
1265478140
1338b47834
1422991160
1515446b29
hexdc5edc0

231075264 has 112 divisors (see below), whose sum is σ = 735584000. Its totient is φ = 62539776.

The previous prime is 231075253. The next prime is 231075293. The reversal of 231075264 is 462570132.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-3 number, since 3×2310752643 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21012 + ... + 30060.

Almost surely, 2231075264 is an apocalyptic number.

231075264 is a gapful number since it is divisible by the number (24) 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 231075264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367792000).

231075264 is an abundant number, since it is smaller than the sum of its proper divisors (504508736).

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

231075264 is a wasteful number, since it uses less digits than its factorization.

231075264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9090 (or 9080 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 231075264 is about 15201.1599557402. The cubic root of 231075264 is about 613.6458751547.

The spelling of 231075264 in words is "two hundred thirty-one million, seventy-five thousand, two hundred sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 19 21 24 28 32 38 42 48 56 57 64 76 84 96 112 114 133 152 168 192 224 228 266 304 336 399 448 456 532 608 672 798 912 1064 1216 1344 1596 1824 2128 3192 3648 4256 6384 8512 9049 12768 18098 25536 27147 36196 54294 63343 72392 108588 126686 144784 171931 190029 217176 253372 289568 343862 380058 434352 506744 515793 579136 687724 760116 868704 1013488 1031586 1203517 1375448 1520232 1737408 2026976 2063172 2407034 2750896 3040464 3610551 4053952 4126344 4814068 5501792 6080928 7221102 8252688 9628136 11003584 12161856 14442204 16505376 19256272 28884408 33010752 38512544 57768816 77025088 115537632 231075264