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22772996 = 2217334897
BaseRepresentation
bin101011011011…
…1110100000100
31120211222200022
41112313310010
521312213441
62132034312
7364365401
oct126676404
946758608
1022772996
1111944764
127762998
13494465c
14304b2a8
151eec84b
hex15b7d04

22772996 has 12 divisors (see below), whose sum is σ = 42197148. Its totient is φ = 10716672.

The previous prime is 22772993. The next prime is 22773029. The reversal of 22772996 is 69927722.

It can be written as a sum of positive squares in 2 ways, for example, as 13249600 + 9523396 = 3640^2 + 3086^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22772993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167381 + ... + 167516.

It is an arithmetic number, because the mean of its divisors is an integer number (3516429).

Almost surely, 222772996 is an apocalyptic number.

It is an amenable number.

22772996 is a deficient number, since it is larger than the sum of its proper divisors (19424152).

22772996 is a wasteful number, since it uses less digits than its factorization.

22772996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334918 (or 334916 counting only the distinct ones).

The product of its digits is 190512, while the sum is 44.

The square root of 22772996 is about 4772.1060340273. The cubic root of 22772996 is about 283.4479954212.

The spelling of 22772996 in words is "twenty-two million, seven hundred seventy-two thousand, nine hundred ninety-six".

Divisors: 1 2 4 17 34 68 334897 669794 1339588 5693249 11386498 22772996