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1214049187 = 13231972389
BaseRepresentation
bin100100001011100…
…1110101110100011
310010121110002101201
41020113032232203
54441244033222
6320245142031
742041151001
oct11027165643
93117402351
101214049187
1157333213a
1229a6ba917
131646a3100
14b7349a71
15718b3427
hex485ceba3

1214049187 has 24 divisors (see below), whose sum is σ = 1371592320. Its totient is φ = 1072880640.

The previous prime is 1214049131. The next prime is 1214049191. The reversal of 1214049187 is 7819404121.

It is not a de Polignac number, because 1214049187 - 211 = 1214047139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214040187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 506989 + ... + 509377.

It is an arithmetic number, because the mean of its divisors is an integer number (57149680).

Almost surely, 21214049187 is an apocalyptic number.

1214049187 is a deficient number, since it is larger than the sum of its proper divisors (157543133).

1214049187 is a wasteful number, since it uses less digits than its factorization.

1214049187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2543 (or 2530 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 1214049187 is about 34843.2086209063. The cubic root of 1214049187 is about 1066.7895697034.

The spelling of 1214049187 in words is "one billion, two hundred fourteen million, forty-nine thousand, one hundred eighty-seven".

Divisors: 1 13 31 97 169 403 1261 2389 3007 5239 16393 31057 39091 74059 231733 403741 508183 962767 3012529 7183723 12515971 39162877 93388399 1214049187