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20472238080000 = 215345474143
BaseRepresentation
bin1001010011110100100000…
…11110101000000000000000
32200111010102110201120010000
410221322100132220000000
510140404120422030000
6111312452155040000
74212033100332060
oct451722036500000
980433373646100
1020472238080000
1165832557600a3
1223677a7140000
13b566a69419c5
1450ac0c3873a0
152577e35d0000
hex129e907a8000

20472238080000 has 3200 divisors, whose sum is σ = 91559130949440. Its totient is φ = 4459069440000.

The previous prime is 20472238079987. The next prime is 20472238080053. The reversal of 20472238080000 is 8083227402.

20472238080000 is a `hidden beast` number, since 204 + 72 + 2 + 380 + 8 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3200).

It is a super-2 number, since 2×204722380800002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 476098559979 + ... + 476098560021.

Almost surely, 220472238080000 is an apocalyptic number.

20472238080000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20472238080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45779565474720).

20472238080000 is an abundant number, since it is smaller than the sum of its proper divisors (71086892869440).

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

20472238080000 is an frugal number, since it uses more digits than its factorization.

20472238080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 20472238080000 in words is "twenty trillion, four hundred seventy-two billion, two hundred thirty-eight million, eighty thousand".