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47221081362 = 2327213231371307
BaseRepresentation
bin101011111110100110…
…001000010100010010
311111212220210110220100
4223332212020110102
51233202044100422
633405411353230
73261116366100
oct537646102422
9144786713810
1047221081362
1119032084384
12919a2b2816
1345b7114180
1423dd636c70
1513659217ac
hexafe988512

47221081362 has 288 divisors, whose sum is σ = 134823491712. Its totient is φ = 11816437248.

The previous prime is 47221081361. The next prime is 47221081399. The reversal of 47221081362 is 26318012274.

It is a happy number.

47221081362 is a `hidden beast` number, since 4 + 7 + 2 + 210 + 81 + 362 = 666.

It is not an unprimeable number, because it can be changed into a prime (47221081361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 36128713 + ... + 36130019.

It is an arithmetic number, because the mean of its divisors is an integer number (468137124).

Almost surely, 247221081362 is an apocalyptic number.

47221081362 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 47221081362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67411745856).

47221081362 is an abundant number, since it is smaller than the sum of its proper divisors (87602410350).

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

47221081362 is a wasteful number, since it uses less digits than its factorization.

47221081362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1492 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 47221081362 in words is "forty-seven billion, two hundred twenty-one million, eighty-one thousand, three hundred sixty-two".