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214629284961 = 327213216972
BaseRepresentation
bin1100011111100011100…
…1101111110001100001
3202111222212212100202100
43013320321233301201
512004030044104321
6242333242241013
721335466551400
oct3077071576141
9674885770670
10214629284961
11830296aa553
123571aab6169
131731610b300
14a560da5637
1558b295c326
hex31f8e6fc61

214629284961 has 81 divisors (see below), whose sum is σ = 390740993721. Its totient is φ = 113144338944.

The previous prime is 214629284941. The next prime is 214629284971. The reversal of 214629284961 is 169482926412.

The square root of 214629284961 is 463281.

It is a perfect power (a square), and thus also a powerful number.

214629284961 is a `hidden beast` number, since 2 + 1 + 4 + 62 + 92 + 8 + 496 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8495124561 + 206134160400 = 92169^2 + 454020^2 .

It is not a de Polignac number, because 214629284961 - 25 = 214629284929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 214629284898 and 214629284907.

It is not an unprimeable number, because it can be changed into a prime (214629284941) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 126474865 + ... + 126476561.

Almost surely, 2214629284961 is an apocalyptic number.

214629284961 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

214629284961 is the 463281-st square number.

214629284961 is the 231641-st centered octagonal number.

It is an amenable number.

214629284961 is a deficient number, since it is larger than the sum of its proper divisors (176111708760).

214629284961 is an equidigital number, since it uses as much as digits as its factorization.

214629284961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440 (or 1720 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 214629284961 in words is "two hundred fourteen billion, six hundred twenty-nine million, two hundred eighty-four thousand, nine hundred sixty-one".

Divisors: 1 3 7 9 13 21 39 49 63 91 117 147 169 273 441 507 637 819 1183 1521 1697 1911 3549 5091 5733 8281 10647 11879 15273 22061 24843 35637 66183 74529 83153 106911 154427 198549 249459 286793 463281 748377 860379 1080989 1389843 2007551 2581137 2879809 3242967 6022653 8639427 9728901 14052857 18067959 20158663 25918281 37437517 42158571 60475989 112312551 126475713 141110641 181427967 262062619 336937653 423331923 486687721 786187857 1269995769 1460063163 1834438333 2358563571 3406814047 4380189489 5503314999 10220442141 16509944997 23847698329 30661326423 71543094987 214629284961