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992404220 = 22549620211
BaseRepresentation
bin111011001001101…
…110001011111100
32120011101100122212
4323021232023330
54013023413340
6242250355552
733410203523
oct7311561374
92504340585
10992404220
1146a205a85
1223842bbb8
1312a7aaa42
1495b314ba
155c1d0a65
hex3b26e2fc

992404220 has 12 divisors (see below), whose sum is σ = 2084048904. Its totient is φ = 396961680.

The previous prime is 992404213. The next prime is 992404229. The reversal of 992404220 is 22404299.

It is a super-2 number, since 2×9924042202 = 1969732271747616800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992404229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24810086 + ... + 24810125.

It is an arithmetic number, because the mean of its divisors is an integer number (173670742).

Almost surely, 2992404220 is an apocalyptic number.

It is an amenable number.

992404220 is an abundant number, since it is smaller than the sum of its proper divisors (1091644684).

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

992404220 is a wasteful number, since it uses less digits than its factorization.

992404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49620220 (or 49620218 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 992404220 is about 31502.4478413980. The cubic root of 992404220 is about 997.4616354908.

The spelling of 992404220 in words is "nine hundred ninety-two million, four hundred four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 49620211 99240422 198480844 248101055 496202110 992404220