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149553214 = 274776607
BaseRepresentation
bin10001110101000…
…00000000111110
3101102102002102221
420322200000332
5301241200324
622501235554
73464116126
oct1072400076
9342362387
10149553214
11774675a8
1242102bba
1324ca3735
1415c0dc86
15d1e20e4
hex8ea003e

149553214 has 4 divisors (see below), whose sum is σ = 224329824. Its totient is φ = 74776606.

The previous prime is 149553211. The next prime is 149553221. The reversal of 149553214 is 412355941.

149553214 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412355941 = 641643301.

It is a self number, because there is not a number n which added to its sum of digits gives 149553214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149553211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37388302 + ... + 37388305.

It is an arithmetic number, because the mean of its divisors is an integer number (56082456).

Almost surely, 2149553214 is an apocalyptic number.

149553214 is a deficient number, since it is larger than the sum of its proper divisors (74776610).

149553214 is an equidigital number, since it uses as much as digits as its factorization.

149553214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74776609.

The product of its digits is 21600, while the sum is 34.

The square root of 149553214 is about 12229.1951493138. The cubic root of 149553214 is about 530.8012255435.

The spelling of 149553214 in words is "one hundred forty-nine million, five hundred fifty-three thousand, two hundred fourteen".

Divisors: 1 2 74776607 149553214