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155264214 = 23723971657
BaseRepresentation
bin10010100000100…
…10010011010110
3101211011020110110
421100102103112
5304221423324
623223503450
73563503230
oct1120222326
9354136413
10155264214
117a708336
1243bb7b86
1326223021
1416899250
15d96e329
hex94124d6

155264214 has 64 divisors (see below), whose sum is σ = 374363136. Its totient is φ = 41969664.

The previous prime is 155264209. The next prime is 155264261. The reversal of 155264214 is 412462551.

It is a super-2 number, since 2×1552642142 = 48213952298075592, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 92874 + ... + 94530.

It is an arithmetic number, because the mean of its divisors is an integer number (5849424).

Almost surely, 2155264214 is an apocalyptic number.

155264214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155264214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187181568).

155264214 is an abundant number, since it is smaller than the sum of its proper divisors (219098922).

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

155264214 is a wasteful number, since it uses less digits than its factorization.

155264214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789.

The product of its digits is 9600, while the sum is 30.

The square root of 155264214 is about 12460.5061694941. The cubic root of 155264214 is about 537.4735825488.

The spelling of 155264214 in words is "one hundred fifty-five million, two hundred sixty-four thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 97 138 161 194 291 322 483 582 679 966 1358 1657 2037 2231 3314 4074 4462 4971 6693 9942 11599 13386 15617 23198 31234 34797 38111 46851 69594 76222 93702 114333 160729 228666 266777 321458 482187 533554 800331 964374 1125103 1600662 2250206 3375309 3696767 6750618 7393534 11090301 22180602 25877369 51754738 77632107 155264214