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14949990 = 23251115101
BaseRepresentation
bin111001000001…
…111001100110
31001010112112100
4321001321212
512311344430
61252232530
7241033656
oct71017146
931115470
1014949990
118491170
12500b746
133135963
141db2366
1514a4960
hexe41e66

14949990 has 48 divisors (see below), whose sum is σ = 42406416. Its totient is φ = 3624000.

The previous prime is 14949989. The next prime is 14949997. The reversal of 14949990 is 9994941.

14949990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14949997) 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, 6561 + ... + 8540.

It is an arithmetic number, because the mean of its divisors is an integer number (883467).

Almost surely, 214949990 is an apocalyptic number.

14949990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14949990 is an abundant number, since it is smaller than the sum of its proper divisors (27456426).

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

14949990 is a wasteful number, since it uses less digits than its factorization.

14949990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15125 (or 15122 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 45.

The square root of 14949990 is about 3866.5216926845. The cubic root of 14949990 is about 246.3468239067.

The spelling of 14949990 in words is "fourteen million, nine hundred forty-nine thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 30 33 45 55 66 90 99 110 165 198 330 495 990 15101 30202 45303 75505 90606 135909 151010 166111 226515 271818 332222 453030 498333 679545 830555 996666 1359090 1494999 1661110 2491665 2989998 4983330 7474995 14949990