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472644688490352 = 24347415932142857
BaseRepresentation
bin110101101110111100010101…
…0110000110010111101110000
32021222111101112222212022120000
41223131320222300302331300
5443422302310223142402
64353121550011150000
7201361310663562360
oct15335705260627560
92258441488768500
10472644688490352
11127665539916354
1245015859a45300
1317396283959901
1484a01a6d449a0
15399988dd78c1c
hex1adde2ac32f70

472644688490352 has 400 divisors, whose sum is σ = 1604228321691072. Its totient is φ = 131525415567360.

The previous prime is 472644688490329. The next prime is 472644688490357. The reversal of 472644688490352 is 253094886446274.

472644688490352 is a `hidden beast` number, since 4 + 7 + 2 + 6 + 4 + 4 + 6 + 88 + 490 + 3 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472644688490357) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 219496108 + ... + 221638964.

Almost surely, 2472644688490352 is an apocalyptic number.

472644688490352 is a gapful number since it is divisible by the number (42) 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 472644688490352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802114160845536).

472644688490352 is an abundant number, since it is smaller than the sum of its proper divisors (1131583633200720).

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

472644688490352 is a wasteful number, since it uses less digits than its factorization.

472644688490352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143518 (or 2143503 counting only the distinct ones).

The product of its (nonzero) digits is 2229534720, while the sum is 72.

The spelling of 472644688490352 in words is "four hundred seventy-two trillion, six hundred forty-four billion, six hundred eighty-eight million, four hundred ninety thousand, three hundred fifty-two".