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307149541918 = 2221369396643
BaseRepresentation
bin1000111100000111000…
…10100001001000011110
31002100210210001101110221
410132003202201020132
520013020240320133
6353034052351554
731122311013022
oct4360342411036
91070723041427
10307149541918
111092969aaa2a
124b63b9155ba
1322c6c10309b
1410c1a8a8382
157eca1b6a2d
hex47838a121e

307149541918 has 8 divisors (see below), whose sum is σ = 460932509448. Its totient is φ = 153505372104.

The previous prime is 307149541891. The next prime is 307149541967. The reversal of 307149541918 is 819145941703.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×3071495419182 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34693896 + ... + 34702747.

It is an arithmetic number, because the mean of its divisors is an integer number (57616563681).

Almost surely, 2307149541918 is an apocalyptic number.

307149541918 is a deficient number, since it is larger than the sum of its proper divisors (153782967530).

307149541918 is a wasteful number, since it uses less digits than its factorization.

307149541918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69398858.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 307149541918 in words is "three hundred seven billion, one hundred forty-nine million, five hundred forty-one thousand, nine hundred eighteen".

Divisors: 1 2 2213 4426 69396643 138793286 153574770959 307149541918