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20472316700 = 22521121691927
BaseRepresentation
bin10011000100001111…
…101100001100011100
31221211202021102221212
4103010033230030130
5313411403113300
613223240443552
71323215551343
oct230417541434
957752242855
1020472316700
1187560a8600
123b741795b8
131c134b9384
14dc2d12b5a
157ec466935
hex4c43ec31c

20472316700 has 54 divisors (see below), whose sum is σ = 48830734008. Its totient is φ = 7444474400.

The previous prime is 20472316699. The next prime is 20472316769. The reversal of 20472316700 is 761327402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 833864 + ... + 858063.

It is an arithmetic number, because the mean of its divisors is an integer number (904272852).

Almost surely, 220472316700 is an apocalyptic number.

20472316700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20472316700 is an abundant number, since it is smaller than the sum of its proper divisors (28358417308).

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

20472316700 is a wasteful number, since it uses less digits than its factorization.

20472316700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691963 (or 1691945 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The spelling of 20472316700 in words is "twenty billion, four hundred seventy-two million, three hundred sixteen thousand, seven hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 121 220 242 275 484 550 605 1100 1210 2420 3025 6050 12100 1691927 3383854 6767708 8459635 16919270 18611197 33838540 37222394 42298175 74444788 84596350 93055985 169192700 186111970 204723167 372223940 409446334 465279925 818892668 930559850 1023615835 1861119700 2047231670 4094463340 5118079175 10236158350 20472316700