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1214146664 = 231719677013
BaseRepresentation
bin100100001011110…
…0110100001101000
310010121122001002222
41020113212201220
54441310143124
6320251213212
742042035123
oct11027464150
93117561088
101214146664
115733993a5
1229a747208
131647085a3
14b73733ba
15718d225e
hex485e6868

1214146664 has 64 divisors (see below), whose sum is σ = 2575540800. Its totient is φ = 533136384.

The previous prime is 1214146643. The next prime is 1214146709. The reversal of 1214146664 is 4666414121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169622 + ... + 176634.

It is an arithmetic number, because the mean of its divisors is an integer number (40242825).

Almost surely, 21214146664 is an apocalyptic number.

It is an amenable number.

1214146664 is an abundant number, since it is smaller than the sum of its proper divisors (1361394136).

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

1214146664 is a wasteful number, since it uses less digits than its factorization.

1214146664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122 (or 7118 counting only the distinct ones).

The product of its digits is 27648, while the sum is 35.

The square root of 1214146664 is about 34844.6073876576. The cubic root of 1214146664 is about 1066.8181200743.

The spelling of 1214146664 in words is "one billion, two hundred fourteen million, one hundred forty-six thousand, six hundred sixty-four".

Divisors: 1 2 4 8 17 19 34 38 67 68 76 134 136 152 268 323 536 646 1139 1273 1292 2278 2546 2584 4556 5092 7013 9112 10184 14026 21641 28052 43282 56104 86564 119221 133247 173128 238442 266494 469871 476884 532988 939742 953768 1065976 1879484 2265199 3758968 4530398 7987807 8927549 9060796 15975614 17855098 18121592 31951228 35710196 63902456 71420392 151768333 303536666 607073332 1214146664