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149418670 = 2519377419
BaseRepresentation
bin10001110011111…
…11001010101110
3101102011020212211
420321333022232
5301222344140
622454321034
73463015642
oct1071771256
9342136784
10149418670
1177385505
124205917a
1324c5741b
1415bb6c22
15d1b72ea
hex8e7f2ae

149418670 has 16 divisors (see below), whose sum is σ = 270350640. Its totient is φ = 59457024.

The previous prime is 149418631. The next prime is 149418671. The reversal of 149418670 is 76814941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149418671) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36780 + ... + 40639.

It is an arithmetic number, because the mean of its divisors is an integer number (16896915).

Almost surely, 2149418670 is an apocalyptic number.

149418670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

149418670 is a deficient number, since it is larger than the sum of its proper divisors (120931970).

149418670 is a wasteful number, since it uses less digits than its factorization.

149418670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77619.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 149418670 is about 12223.6929771653. The cubic root of 149418670 is about 530.6420011774.

It can be divided in two parts, 1494 and 18670, that added together give a square (20164 = 1422).

The spelling of 149418670 in words is "one hundred forty-nine million, four hundred eighteen thousand, six hundred seventy".

Divisors: 1 2 5 10 193 386 965 1930 77419 154838 387095 774190 14941867 29883734 74709335 149418670