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214263441680 = 24517053157057
BaseRepresentation
bin1100011110001100011…
…0001010100100010000
3202111001101110121010012
43013203012022210100
512002302420113210
6242233053054052
721323435130041
oct3074306124420
9674041417105
10214263441680
1182961144032
1235638487328
13172883989b2
14a5285728c8
155890794305
hex31e318a910

214263441680 has 40 divisors (see below), whose sum is σ = 498194886552. Its totient is φ = 85699805184.

The previous prime is 214263441677. The next prime is 214263441683. The reversal of 214263441680 is 86144362412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (214263441677) and next prime (214263441683).

It can be written as a sum of positive squares in 4 ways, for example, as 5717779456 + 208545662224 = 75616^2 + 456668^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2142634416802 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214263441683) 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, 1285712 + ... + 1442768.

Almost surely, 2214263441680 is an apocalyptic number.

214263441680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214263441680 is an abundant number, since it is smaller than the sum of its proper divisors (283931444872).

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

214263441680 is a wasteful number, since it uses less digits than its factorization.

214263441680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174123 (or 174117 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 214263441680 in words is "two hundred fourteen billion, two hundred sixty-three million, four hundred forty-one thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 17053 34106 68212 85265 136424 157057 170530 272848 314114 341060 628228 682120 785285 1256456 1364240 1570570 2512912 3141140 6282280 12564560 2678293021 5356586042 10713172084 13391465105 21426344168 26782930210 42852688336 53565860420 107131720840 214263441680