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76144992 = 25371110301
BaseRepresentation
bin1001000100111…
…10000101100000
312022021120021220
410202132011200
5123443114432
611320015040
71613136030
oct442360540
9168246256
1076144992
1139a88950
1221601480
1312a10811
14a1818c0
156a4172c
hex489e160

76144992 has 96 divisors (see below), whose sum is σ = 249225984. Its totient is φ = 19776000.

The previous prime is 76144979. The next prime is 76144993. The reversal of 76144992 is 29944167.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-4 number, since 4×761449924 (a number of 33 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76144993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2242 + ... + 12542.

It is an arithmetic number, because the mean of its divisors is an integer number (2596104).

Almost surely, 276144992 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 76144992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124612992).

76144992 is an abundant number, since it is smaller than the sum of its proper divisors (173080992).

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

76144992 is a wasteful number, since it uses less digits than its factorization.

76144992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10332 (or 10324 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 76144992 is about 8726.1097861533. The cubic root of 76144992 is about 423.8515559621.

It can be divided in two parts, 761 and 44992, that added together give a triangular number (45753 = T302).

The spelling of 76144992 in words is "seventy-six million, one hundred forty-four thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 7 8 11 12 14 16 21 22 24 28 32 33 42 44 48 56 66 77 84 88 96 112 132 154 168 176 224 231 264 308 336 352 462 528 616 672 924 1056 1232 1848 2464 3696 7392 10301 20602 30903 41204 61806 72107 82408 113311 123612 144214 164816 216321 226622 247224 288428 329632 339933 432642 453244 494448 576856 679866 793177 865284 906488 988896 1153712 1359732 1586354 1730568 1812976 2307424 2379531 2719464 3172708 3461136 3625952 4759062 5438928 6345416 6922272 9518124 10877856 12690832 19036248 25381664 38072496 76144992