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40472892020 = 22511562332717
BaseRepresentation
bin100101101100010111…
…110101001001110100
310212110121212221101202
4211230113311021310
51130342030021040
630332030312032
72631645622511
oct455427651164
9125417787352
1040472892020
111618998a8a0
127a16358618
133a80035b22
141d5d308308
1510bd298015
hex96c5f5274

40472892020 has 48 divisors (see below), whose sum is σ = 92739040128. Its totient is φ = 14714348160.

The previous prime is 40472891999. The next prime is 40472892023. The reversal of 40472892020 is 2029827404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40472892023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1220702 + ... + 1253418.

It is an arithmetic number, because the mean of its divisors is an integer number (1932063336).

Almost surely, 240472892020 is an apocalyptic number.

It is an amenable number.

40472892020 is an abundant number, since it is smaller than the sum of its proper divisors (52266148108).

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

40472892020 is a wasteful number, since it uses less digits than its factorization.

40472892020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38360 (or 38358 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 40472892020 in words is "forty billion, four hundred seventy-two million, eight hundred ninety-two thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 5623 11246 22492 28115 32717 56230 61853 65434 112460 123706 130868 163585 247412 309265 327170 359887 618530 654340 719774 1237060 1439548 1799435 3598870 7197740 183967691 367935382 735870764 919838455 1839676910 2023644601 3679353820 4047289202 8094578404 10118223005 20236446010 40472892020