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20452030404 = 22313177711927
BaseRepresentation
bin10011000011000010…
…010011011111000100
31221210100002210101120
4103003002103133010
5313341204433104
613221233553540
71322551250541
oct230302233704
957710083346
1020452030404
118745702173
123b694158b0
131c0c235850
14dc0351bc8
157ea7aacd9
hex4c30937c4

20452030404 has 48 divisors (see below), whose sum is σ = 54415363968. Its totient is φ = 5922759168.

The previous prime is 20452030393. The next prime is 20452030433. The reversal of 20452030404 is 40403025402.

It is a super-2 number, since 2×204520304042 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3853312 + ... + 3858615.

It is an arithmetic number, because the mean of its divisors is an integer number (1133653416).

Almost surely, 220452030404 is an apocalyptic number.

It is an amenable number.

20452030404 is an abundant number, since it is smaller than the sum of its proper divisors (33963333564).

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

20452030404 is a wasteful number, since it uses less digits than its factorization.

20452030404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711964 (or 7711962 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

Adding to 20452030404 its reverse (40403025402), we get a palindrome (60855055806).

The spelling of 20452030404 in words is "twenty billion, four hundred fifty-two million, thirty thousand, four hundred four".

Divisors: 1 2 3 4 6 12 13 17 26 34 39 51 52 68 78 102 156 204 221 442 663 884 1326 2652 7711927 15423854 23135781 30847708 46271562 92543124 100255051 131102759 200510102 262205518 300765153 393308277 401020204 524411036 601530306 786616554 1203060612 1573233108 1704335867 3408671734 5113007601 6817343468 10226015202 20452030404