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22122040430 = 25713914915259
BaseRepresentation
bin10100100110100100…
…111000110001101110
32010002201112002110202
4110212210320301232
5330301220243210
614055052033502
71412130145460
oct244644706156
963081462422
1022122040430
119422351446
124354762892
132117211869
1410dc06c130
158971d89a5
hex526938c6e

22122040430 has 64 divisors (see below), whose sum is σ = 46146240000. Its totient is φ = 7479105408.

The previous prime is 22122040411. The next prime is 22122040439. The reversal of 22122040430 is 3404022122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22122040439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1442141 + ... + 1457399.

It is an arithmetic number, because the mean of its divisors is an integer number (721035000).

Almost surely, 222122040430 is an apocalyptic number.

22122040430 is an abundant number, since it is smaller than the sum of its proper divisors (24024199570).

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

22122040430 is a wasteful number, since it uses less digits than its factorization.

22122040430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 22122040430 its reverse (3404022122), we get a palindrome (25526062552).

The spelling of 22122040430 in words is "twenty-two billion, one hundred twenty-two million, forty thousand, four hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 139 149 278 298 695 745 973 1043 1390 1490 1946 2086 4865 5215 9730 10430 15259 20711 30518 41422 76295 103555 106813 144977 152590 207110 213626 289954 534065 724885 1068130 1449770 2121001 2273591 4242002 4547182 10605005 11367955 14847007 15915137 21210010 22735910 29694014 31830274 74235035 79575685 148470070 159151370 316029149 632058298 1580145745 2212204043 3160291490 4424408086 11061020215 22122040430