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282473172980 = 2251188432
BaseRepresentation
bin1000001110001001011…
…01101000111111110100
31000000010001002222000122
410013010231220333310
514112001113013410
6333433312231112
726256643232315
oct4070455507764
91000101088018
10282473172980
11a9883818799
12468b383b498
132083894c74b
14d9594c660c
157533b1ee55
hex41c4b68ff4

282473172980 has 18 divisors (see below), whose sum is σ = 593198654706. Its totient is φ = 112988318448.

The previous prime is 282473172979. The next prime is 282473173013. The reversal of 282473172980 is 89271374282.

It can be written as a sum of positive squares in only one way, i.e., 225978538384 + 56494634596 = 475372^2 + 237686^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2317439 + ... + 2436281.

It is an arithmetic number, because the mean of its divisors is an integer number (32955480817).

Almost surely, 2282473172980 is an apocalyptic number.

282473172980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

282473172980 is an abundant number, since it is smaller than the sum of its proper divisors (310725481726).

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

282473172980 is an frugal number, since it uses more digits than its factorization.

282473172980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237695 (or 118850 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The spelling of 282473172980 in words is "two hundred eighty-two billion, four hundred seventy-three million, one hundred seventy-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 118843 237686 475372 594215 1188430 2376860 14123658649 28247317298 56494634596 70618293245 141236586490 282473172980