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155142024 = 23353121967
BaseRepresentation
bin10010011111101…
…00011110001000
3101210221000211220
421033310132020
5304204021044
623221122040
73562454052
oct1117643610
9353830756
10155142024
117a634554
1243b59320
13261ac51b
14168668d2
15d948019
hex93f4788

155142024 has 32 divisors (see below), whose sum is σ = 395176320. Its totient is φ = 50737856.

The previous prime is 155141981. The next prime is 155142047. The reversal of 155142024 is 420241551.

155142024 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1551420242 = 48138095221633152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 155141985 and 155142003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59712 + ... + 62255.

It is an arithmetic number, because the mean of its divisors is an integer number (12349260).

Almost surely, 2155142024 is an apocalyptic number.

It is an amenable number.

155142024 is an abundant number, since it is smaller than the sum of its proper divisors (240034296).

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

155142024 is a wasteful number, since it uses less digits than its factorization.

155142024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122029 (or 122025 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 155142024 is about 12455.6021131056. The cubic root of 155142024 is about 537.3325516979.

Adding to 155142024 its reverse (420241551), we get a palindrome (575383575).

The spelling of 155142024 in words is "one hundred fifty-five million, one hundred forty-two thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 24 53 106 159 212 318 424 636 1272 121967 243934 365901 487868 731802 975736 1463604 2927208 6464251 12928502 19392753 25857004 38785506 51714008 77571012 155142024