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13978050 = 235293187
BaseRepresentation
bin110101010100…
…100111000010
3222022011021120
4311110213002
512034244200
61215333110
7226545222
oct65244702
928264246
1013978050
117987a09
124821196
132b85448
141bdc082
1513619a0
hexd549c2

13978050 has 24 divisors (see below), whose sum is σ = 34665936. Its totient is φ = 3727440.

The previous prime is 13978033. The next prime is 13978057. The reversal of 13978050 is 5087931.

It is not an unprimeable number, because it can be changed into a prime (13978057) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 46444 + ... + 46743.

It is an arithmetic number, because the mean of its divisors is an integer number (1444414).

Almost surely, 213978050 is an apocalyptic number.

13978050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13978050 is an abundant number, since it is smaller than the sum of its proper divisors (20687886).

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

13978050 is a wasteful number, since it uses less digits than its factorization.

13978050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93202 (or 93197 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 13978050 is about 3738.7230440352. The cubic root of 13978050 is about 240.8882019063. Note that the first 3 decimals are identical.

The spelling of 13978050 in words is "thirteen million, nine hundred seventy-eight thousand, fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 93187 186374 279561 465935 559122 931870 1397805 2329675 2795610 4659350 6989025 13978050