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149345679 = 3722953661
BaseRepresentation
bin10001110011011…
…01010110001111
3101102000112202110
420321231112033
5301213030204
622452555103
73462263100
oct1071552617
9342015673
10149345679
117733568a
1242022a93
1324c30132
1415b983a7
15d1a0889
hex8e6d58f

149345679 has 48 divisors (see below), whose sum is σ = 244516320. Its totient is φ = 80720640.

The previous prime is 149345641. The next prime is 149345687. The reversal of 149345679 is 976543941.

It is not a de Polignac number, because 149345679 - 28 = 149345423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149345639) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 225609 + ... + 226269.

It is an arithmetic number, because the mean of its divisors is an integer number (5094090).

Almost surely, 2149345679 is an apocalyptic number.

149345679 is a deficient number, since it is larger than the sum of its proper divisors (95170641).

149345679 is a wasteful number, since it uses less digits than its factorization.

149345679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 753 counting only the distinct ones).

The product of its digits is 816480, while the sum is 48.

The square root of 149345679 is about 12220.7069762760. The cubic root of 149345679 is about 530.5555809220. Note that the first 4 decimals are identical.

The spelling of 149345679 in words is "one hundred forty-nine million, three hundred forty-five thousand, six hundred seventy-nine".

Divisors: 1 3 7 21 29 49 53 87 147 159 203 371 609 661 1113 1421 1537 1983 2597 4263 4611 4627 7791 10759 13881 19169 32277 32389 35033 57507 75313 97167 105099 134183 225939 245231 402549 735693 939281 1015957 1716617 2817843 3047871 5149851 7111699 21335097 49781893 149345679