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1214563490 = 25722818821
BaseRepresentation
bin100100001100100…
…1100010010100010
310010122102012212222
41020121030102202
54441412012430
6320304151042
742045422300
oct11031142242
93118365788
101214563490
11573653588
1229a908482
1316482322a
14b7441270
15719659e5
hex4864c4a2

1214563490 has 48 divisors (see below), whose sum is σ = 2552486904. Its totient is φ = 414892800.

The previous prime is 1214563463. The next prime is 1214563547. The reversal of 1214563490 is 943654121.

It can be written as a sum of positive squares in 4 ways, for example, as 1104166441 + 110397049 = 33229^2 + 10507^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214563490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133280 + ... + 142100.

Almost surely, 21214563490 is an apocalyptic number.

1214563490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214563490 is an abundant number, since it is smaller than the sum of its proper divisors (1337923414).

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

1214563490 is a wasteful number, since it uses less digits than its factorization.

1214563490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9123 (or 9116 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 1214563490 is about 34850.5880868602. The cubic root of 1214563490 is about 1066.9401884278.

The spelling of 1214563490 in words is "one billion, two hundred fourteen million, five hundred sixty-three thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 281 490 562 1405 1967 2810 3934 8821 9835 13769 17642 19670 27538 44105 61747 68845 88210 123494 137690 308735 432229 617470 864458 2161145 2478701 4322290 4957402 12393505 17350907 24787010 34701814 86754535 121456349 173509070 242912698 607281745 1214563490