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1214251530 = 23540475051
BaseRepresentation
bin100100001100000…
…0000001000001010
310010121211100221220
41020120000020022
54441322022110
6320253342510
742042652632
oct11030001012
93117740856
101214251530
11573460168
1229a797a36
1316474423b
14b739d6c2
1571903370
hex4860020a

1214251530 has 16 divisors (see below), whose sum is σ = 2914203744. Its totient is φ = 323800400.

The previous prime is 1214251523. The next prime is 1214251579. The reversal of 1214251530 is 351524121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1214251530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20237496 + ... + 20237555.

It is an arithmetic number, because the mean of its divisors is an integer number (182137734).

Almost surely, 21214251530 is an apocalyptic number.

1214251530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1214251530 is an abundant number, since it is smaller than the sum of its proper divisors (1699952214).

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

1214251530 is a wasteful number, since it uses less digits than its factorization.

1214251530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40475061.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1214251530 is about 34846.1121217274. The cubic root of 1214251530 is about 1066.8488329285.

Adding to 1214251530 its reverse (351524121), we get a palindrome (1565775651).

The spelling of 1214251530 in words is "one billion, two hundred fourteen million, two hundred fifty-one thousand, five hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 40475051 80950102 121425153 202375255 242850306 404750510 607125765 1214251530