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14749690 = 2529181281
BaseRepresentation
bin111000010000…
…111111111010
31000202100202211
4320100333322
512233442230
61244045334
7236241004
oct70207772
930670684
1014749690
11836472a
124b3384a
133095737
141d5d374
15146542a
hexe10ffa

14749690 has 32 divisors (see below), whose sum is σ = 27714960. Its totient is φ = 5644800.

The previous prime is 14749687. The next prime is 14749697. The reversal of 14749690 is 9694741.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3101121 + 11648569 = 1761^2 + 3413^2 .

It is a super-2 number, since 2×147496902 = 435106710192200, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (14749697) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52350 + ... + 52630.

Almost surely, 214749690 is an apocalyptic number.

14749690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14749690 is a deficient number, since it is larger than the sum of its proper divisors (12965270).

14749690 is a wasteful number, since it uses less digits than its factorization.

14749690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 14749690 is about 3840.5325151598. The cubic root of 14749690 is about 245.2416884748.

The spelling of 14749690 in words is "fourteen million, seven hundred forty-nine thousand, six hundred ninety".

Divisors: 1 2 5 10 29 58 145 181 281 290 362 562 905 1405 1810 2810 5249 8149 10498 16298 26245 40745 50861 52490 81490 101722 254305 508610 1474969 2949938 7374845 14749690