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161747344304 = 24713111090209
BaseRepresentation
bin1001011010100011100…
…1001001101110110000
3120110111110011102202122
42112220321021232300
510122224310004204
6202150010533412
714454151512320
oct2265071115660
9513443142678
10161747344304
1162662182867
1227420a37268
1312339281870
147b85a01280
15431a0940be
hex25a8e49bb0

161747344304 has 40 divisors (see below), whose sum is σ = 385705209120. Its totient is φ = 63987959808.

The previous prime is 161747344303. The next prime is 161747344307. The reversal of 161747344304 is 403443747161.

It is not an unprimeable number, because it can be changed into a prime (161747344303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55543649 + ... + 55546560.

It is an arithmetic number, because the mean of its divisors is an integer number (9642630228).

Almost surely, 2161747344304 is an apocalyptic number.

161747344304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

161747344304 is an abundant number, since it is smaller than the sum of its proper divisors (223957864816).

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

161747344304 is a wasteful number, since it uses less digits than its factorization.

161747344304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111090237 (or 111090231 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 44.

The spelling of 161747344304 in words is "one hundred sixty-one billion, seven hundred forty-seven million, three hundred forty-four thousand, three hundred four".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 56 91 104 112 182 208 364 728 1456 111090209 222180418 444360836 777631463 888721672 1444172717 1555262926 1777443344 2888345434 3110525852 5776690868 6221051704 10109209019 11553381736 12442103408 20218418038 23106763472 40436836076 80873672152 161747344304