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14745990 = 2357234371
BaseRepresentation
bin111000010000…
…000110000110
31000202011200210
4320100012012
512233332430
61244020250
7236224140
oct70200606
930664623
1014745990
118361976
124b31686
133093b4c
141d5bc90
1514642b0
hexe10186

14745990 has 128 divisors (see below), whose sum is σ = 43794432. Its totient is φ = 3104640.

The previous prime is 14745979. The next prime is 14746003. The reversal of 14745990 is 9954741.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207655 + ... + 207725.

It is an arithmetic number, because the mean of its divisors is an integer number (342144).

Almost surely, 214745990 is an apocalyptic number.

14745990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 14745990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21897216).

14745990 is an abundant number, since it is smaller than the sum of its proper divisors (29048442).

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

14745990 is a wasteful number, since it uses less digits than its factorization.

14745990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 14745990 is about 3840.0507809142. The cubic root of 14745990 is about 245.2211802441.

The spelling of 14745990 in words is "fourteen million, seven hundred forty-five thousand, nine hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 30 35 42 43 46 69 70 71 86 105 115 129 138 142 161 210 213 215 230 258 301 322 345 355 426 430 483 497 602 645 690 710 805 903 966 989 994 1065 1290 1491 1505 1610 1633 1806 1978 2130 2415 2485 2967 2982 3010 3053 3266 4515 4830 4899 4945 4970 5934 6106 6923 7455 8165 9030 9159 9798 9890 11431 13846 14835 14910 15265 16330 18318 20769 21371 22862 24495 29670 30530 34293 34615 41538 42742 45795 48990 57155 64113 68586 69230 70219 91590 103845 106855 114310 128226 140438 171465 207690 210657 213710 320565 342930 351095 421314 491533 641130 702190 983066 1053285 1474599 2106570 2457665 2949198 4915330 7372995 14745990