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159420500 = 2253318841
BaseRepresentation
bin10011000000010…
…01000001010100
3102002222101210222
421200021001110
5311302424000
623452533512
73644023541
oct1140110124
9362871728
10159420500
1181a96a88
1245481298
1327049a75
141725bbc8
15dee0a85
hex9809054

159420500 has 24 divisors (see below), whose sum is σ = 348175464. Its totient is φ = 63768000.

The previous prime is 159420497. The next prime is 159420529. The reversal of 159420500 is 5024951.

It can be written as a sum of positive squares in 4 ways, for example, as 4624 + 159415876 = 68^2 + 12626^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 159420500.

It is a congruent number.

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, 158921 + ... + 159920.

It is an arithmetic number, because the mean of its divisors is an integer number (14507311).

Almost surely, 2159420500 is an apocalyptic number.

159420500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159420500 is an abundant number, since it is smaller than the sum of its proper divisors (188754964).

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

159420500 is a wasteful number, since it uses less digits than its factorization.

159420500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318860 (or 318848 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 159420500 is about 12626.1831128809. The cubic root of 159420500 is about 542.2273116877.

The spelling of 159420500 in words is "one hundred fifty-nine million, four hundred twenty thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 318841 637682 1275364 1594205 3188410 6376820 7971025 15942050 31884100 39855125 79710250 159420500