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23442704388 = 2232651186233
BaseRepresentation
bin10101110101010010…
…110100100000000100
32020111202120202211200
4111311102310200010
5341002313020023
614434110302500
71456634461635
oct256522644004
966452522750
1023442704388
119a3a882864
124662ab7a30
132297a0321c
1411c560b88c
1592310b743
hex5754b4804

23442704388 has 18 divisors (see below), whose sum is σ = 59257947294. Its totient is φ = 7814234784.

The previous prime is 23442704371. The next prime is 23442704413. The reversal of 23442704388 is 88340724432.

23442704388 is a `hidden beast` number, since 2 + 344 + 270 + 4 + 38 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22270189824 + 1172514564 = 149232^2 + 34242^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325593081 + ... + 325593152.

It is an arithmetic number, because the mean of its divisors is an integer number (3292108183).

Almost surely, 223442704388 is an apocalyptic number.

It is an amenable number.

23442704388 is an abundant number, since it is smaller than the sum of its proper divisors (35815242906).

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

23442704388 is a wasteful number, since it uses less digits than its factorization.

23442704388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651186243 (or 651186238 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 23442704388 in words is "twenty-three billion, four hundred forty-two million, seven hundred four thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 651186233 1302372466 1953558699 2604744932 3907117398 5860676097 7814234796 11721352194 23442704388