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155343030 = 2357172931
BaseRepresentation
bin10010100001001…
…01100010110110
3101211022020120120
421100211202312
5304231434110
623225312410
73564252063
oct1120454266
9354266516
10155343030
117a761577
1244035706
132624cb6b
14168b9c6a
15d987870
hex94258b6

155343030 has 32 divisors (see below), whose sum is σ = 378079488. Its totient is φ = 40840800.

The previous prime is 155342969. The next prime is 155343043. The reversal of 155343030 is 30343551.

It is a happy number.

155343030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34336 + ... + 38595.

It is an arithmetic number, because the mean of its divisors is an integer number (11814984).

Almost surely, 2155343030 is an apocalyptic number.

155343030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155343030 is an abundant number, since it is smaller than the sum of its proper divisors (222736458).

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

155343030 is a wasteful number, since it uses less digits than its factorization.

155343030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73012.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 155343030 is about 12463.6684005954. The cubic root of 155343030 is about 537.5645121774.

Adding to 155343030 its reverse (30343551), we get a palindrome (185686581).

The spelling of 155343030 in words is "one hundred fifty-five million, three hundred forty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 71 142 213 355 426 710 1065 2130 72931 145862 218793 364655 437586 729310 1093965 2187930 5178101 10356202 15534303 25890505 31068606 51781010 77671515 155343030