Search a number
-
+
131522048 = 29736697
BaseRepresentation
bin1111101011011…
…01111000000000
3100011111000022222
413311231320000
5232132201143
621014550212
73154630130
oct765557000
9304430288
10131522048
1168271509
1238068368
132132c4c8
1413678ac0
15b82e768
hex7d6de00

131522048 has 40 divisors (see below), whose sum is σ = 300336432. Its totient is φ = 56365056.

The previous prime is 131522023. The next prime is 131522051. The reversal of 131522048 is 840225131.

It is a super-2 number, since 2×1315220482 = 34596098220228608, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14765 + ... + 21932.

Almost surely, 2131522048 is an apocalyptic number.

It is an amenable number.

131522048 is an abundant number, since it is smaller than the sum of its proper divisors (168814384).

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

131522048 is an frugal number, since it uses more digits than its factorization.

131522048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36722 (or 36706 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 131522048 is about 11468.3062393712. The cubic root of 131522048 is about 508.5490581175.

Adding to 131522048 its reverse (840225131), we get a palindrome (971747179).

The spelling of 131522048 in words is "one hundred thirty-one million, five hundred twenty-two thousand, forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1792 3584 36697 73394 146788 256879 293576 513758 587152 1027516 1174304 2055032 2348608 4110064 4697216 8220128 9394432 16440256 18788864 32880512 65761024 131522048