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22070620 = 22511137717
BaseRepresentation
bin101010000110…
…0010101011100
31112112022012101
41110030111130
521122224440
62105014444
7355411555
oct124142534
945468171
1022070620
1111504a90
127484424
134759a50
142d0732c
151e0e69a
hex150c55c

22070620 has 48 divisors (see below), whose sum is σ = 54458208. Its totient is φ = 7407360.

The previous prime is 22070603. The next prime is 22070627. The reversal of 22070620 is 2607022.

It is a happy number.

It is a super-2 number, since 2×220706202 = 974224534368800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22070627) 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 15 ways as a sum of consecutive naturals, for example, 999 + ... + 6718.

It is an arithmetic number, because the mean of its divisors is an integer number (1134546).

Almost surely, 222070620 is an apocalyptic number.

22070620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22070620 is an abundant number, since it is smaller than the sum of its proper divisors (32387588).

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

22070620 is a wasteful number, since it uses less digits than its factorization.

22070620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7750 (or 7748 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 22070620 is about 4697.9378454807. The cubic root of 22070620 is about 280.5034310393.

Adding to 22070620 its reverse (2607022), we get a palindrome (24677642).

The spelling of 22070620 in words is "twenty-two million, seventy thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 13 20 22 26 44 52 55 65 110 130 143 220 260 286 572 715 1430 2860 7717 15434 30868 38585 77170 84887 100321 154340 169774 200642 339548 401284 424435 501605 848870 1003210 1103531 1697740 2006420 2207062 4414124 5517655 11035310 22070620