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1222931424 = 253111389083
BaseRepresentation
bin100100011100100…
…0111001111100000
310011020011100112110
41020321013033200
510001032301144
6321203355320
742206513511
oct11071071740
93136140473
101222931424
11578349530
122a1682b40
13166492c80
14b85bca08
157256a0b9
hex48e473e0

1222931424 has 96 divisors (see below), whose sum is σ = 3771460224. Its totient is φ = 342074880.

The previous prime is 1222931419. The next prime is 1222931429. The reversal of 1222931424 is 4241392221.

It is an interprime number because it is at equal distance from previous prime (1222931419) and next prime (1222931429).

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

It is a super-2 number, since 2×12229314242 = 2991122535613335552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222931391 and 1222931400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222931429) 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, 30814 + ... + 58269.

It is an arithmetic number, because the mean of its divisors is an integer number (39286044).

Almost surely, 21222931424 is an apocalyptic number.

It is an amenable number.

1222931424 is an abundant number, since it is smaller than the sum of its proper divisors (2548528800).

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

1222931424 is a wasteful number, since it uses less digits than its factorization.

1222931424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89120 (or 89112 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1222931424 is about 34970.4364285034. The cubic root of 1222931424 is about 1069.3848690172.

The spelling of 1222931424 in words is "one billion, two hundred twenty-two million, nine hundred thirty-one thousand, four hundred twenty-four".

Divisors: 1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 44 48 52 66 78 88 96 104 132 143 156 176 208 264 286 312 352 416 429 528 572 624 858 1056 1144 1248 1716 2288 3432 4576 6864 13728 89083 178166 267249 356332 534498 712664 979913 1068996 1158079 1425328 1959826 2137992 2316158 2850656 2939739 3474237 3919652 4275984 4632316 5879478 6948474 7839304 8551968 9264632 11758956 12738869 13896948 15678608 18529264 23517912 25477738 27793896 31357216 37058528 38216607 47035824 50955476 55587792 76433214 94071648 101910952 111175584 152866428 203821904 305732856 407643808 611465712 1222931424