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144831299664 = 24310129874443
BaseRepresentation
bin1000011011100010011…
…1100100000001010000
3111211211112122022221210
42012320213210001100
54333103303042124
6150311245220120
713315024510032
oct2067047440120
9454745568853
10144831299664
1156471547087
122409b861640
13108717a4cac
14701d137c52
153b79e52a29
hex21b89e4050

144831299664 has 40 divisors (see below), whose sum is σ = 377851967712. Its totient is φ = 47799107200.

The previous prime is 144831299659. The next prime is 144831299737. The reversal of 144831299664 is 466992138441.

It is a super-2 number, since 2×1448312996642 (a number of 23 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 7 ways as a sum of consecutive naturals, for example, 14932374 + ... + 14942069.

Almost surely, 2144831299664 is an apocalyptic number.

It is an amenable number.

144831299664 is an abundant number, since it is smaller than the sum of its proper divisors (233020668048).

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

144831299664 is a wasteful number, since it uses less digits than its factorization.

144831299664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29874555 (or 29874549 counting only the distinct ones).

The product of its digits is 8957952, while the sum is 57.

The spelling of 144831299664 in words is "one hundred forty-four billion, eight hundred thirty-one million, two hundred ninety-nine thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 101 202 303 404 606 808 1212 1616 2424 4848 29874443 59748886 89623329 119497772 179246658 238995544 358493316 477991088 716986632 1433973264 3017318743 6034637486 9051956229 12069274972 18103912458 24138549944 36207824916 48277099888 72415649832 144831299664