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149743294 = 21923732347
BaseRepresentation
bin10001110110011…
…10011010111110
3101102202202011221
420323032122332
5301313241134
622505303554
73465540241
oct1073163276
9342682157
10149743294
1177587398
1242194bba
132503c0cc
1415c5d258
15d22d5b4
hex8ece6be

149743294 has 32 divisors (see below), whose sum is σ = 250202880. Its totient is φ = 66889152.

The previous prime is 149743289. The next prime is 149743333. The reversal of 149743294 is 492347941.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 149743294.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62629 + ... + 64975.

It is an arithmetic number, because the mean of its divisors is an integer number (7818840).

Almost surely, 2149743294 is an apocalyptic number.

149743294 is a deficient number, since it is larger than the sum of its proper divisors (100459586).

149743294 is a wasteful number, since it uses less digits than its factorization.

149743294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464.

The product of its digits is 217728, while the sum is 43.

The square root of 149743294 is about 12236.9642477209. The cubic root of 149743294 is about 531.0260105975.

The spelling of 149743294 in words is "one hundred forty-nine million, seven hundred forty-three thousand, two hundred ninety-four".

Divisors: 1 2 19 23 38 46 73 146 437 874 1387 1679 2347 2774 3358 4694 31901 44593 53981 63802 89186 107962 171331 342662 1025639 2051278 3255289 3940613 6510578 7881226 74871647 149743294