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142924824 = 23387389
BaseRepresentation
bin10001000010011…
…01110000011000
3100221221100000000
420201031300120
5243042043244
622103213000
73353561310
oct1041156030
9327840000
10142924824
117374a599
123ba47160
13237c2703
1414da6440
15c833169
hex884dc18

142924824 has 144 divisors (see below), whose sum is σ = 460558800. Its totient is φ = 40730688.

The previous prime is 142924813. The next prime is 142924841. The reversal of 142924824 is 428429241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 367222 + ... + 367610.

It is an arithmetic number, because the mean of its divisors is an integer number (3198325).

Almost surely, 2142924824 is an apocalyptic number.

142924824 is a gapful number since it is divisible by the number (14) 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 142924824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230279400).

142924824 is an abundant number, since it is smaller than the sum of its proper divisors (317633976).

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

142924824 is an frugal number, since it uses more digits than its factorization.

142924824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426 (or 401 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 142924824 is about 11955.1170634168. The cubic root of 142924824 is about 522.8405008716.

The spelling of 142924824 in words is "one hundred forty-two million, nine hundred twenty-four thousand, eight hundred twenty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 81 84 108 126 162 168 189 216 243 252 324 378 389 486 504 567 648 729 756 778 972 1134 1167 1458 1512 1556 1701 1944 2187 2268 2334 2723 2916 3112 3402 3501 4374 4536 4668 5103 5446 5832 6561 6804 7002 8169 8748 9336 10206 10503 10892 13122 13608 14004 15309 16338 17496 20412 21006 21784 24507 26244 28008 30618 31509 32676 40824 42012 45927 49014 52488 61236 63018 65352 73521 84024 91854 94527 98028 122472 126036 147042 183708 189054 196056 220563 252072 283581 294084 367416 378108 441126 567162 588168 661689 756216 850743 882252 1134324 1323378 1701486 1764504 1985067 2268648 2552229 2646756 3402972 3970134 5104458 5293512 5955201 6805944 7940268 10208916 11910402 15880536 17865603 20417832 23820804 35731206 47641608 71462412 142924824