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122768424 = 233217195279
BaseRepresentation
bin1110101000101…
…00110000101000
322120000021121200
413110110300220
5222412042144
620103204200
73020341302
oct724246050
9276007550
10122768424
1163332809
1235146660
131c58604c
141243a972
15aba0c69
hex7514c28

122768424 has 96 divisors (see below), whose sum is σ = 370656000. Its totient is φ = 36481536.

The previous prime is 122768423. The next prime is 122768431. The reversal of 122768424 is 424867221.

122768424 is a `hidden beast` number, since 1 + 227 + 6 + 8 + 424 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122768423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20617 + ... + 25895.

It is an arithmetic number, because the mean of its divisors is an integer number (3861000).

Almost surely, 2122768424 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 122768424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185328000).

122768424 is an abundant number, since it is smaller than the sum of its proper divisors (247887576).

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

122768424 is a wasteful number, since it uses less digits than its factorization.

122768424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5327 (or 5320 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 122768424 is about 11080.0913353636. The cubic root of 122768424 is about 497.0066811782.

The spelling of 122768424 in words is "one hundred twenty-two million, seven hundred sixty-eight thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 17 18 19 24 34 36 38 51 57 68 72 76 102 114 136 152 153 171 204 228 306 323 342 408 456 612 646 684 969 1224 1292 1368 1938 2584 2907 3876 5279 5814 7752 10558 11628 15837 21116 23256 31674 42232 47511 63348 89743 95022 100301 126696 179486 190044 200602 269229 300903 358972 380088 401204 538458 601806 717944 802408 807687 902709 1076916 1203612 1615374 1705117 1805418 2153832 2407224 3230748 3410234 3610836 5115351 6461496 6820468 7221672 10230702 13640936 15346053 20461404 30692106 40922808 61384212 122768424