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151007540 = 2257550377
BaseRepresentation
bin10010000000000…
…11000100110100
3101112010222101212
421000003010310
5302124220130
622552340552
73512354135
oct1100030464
9345128355
10151007540
1178270222
12426a4758
1325392698
14160abc8c
15d3cce95
hex9003134

151007540 has 12 divisors (see below), whose sum is σ = 317115876. Its totient is φ = 60403008.

The previous prime is 151007539. The next prime is 151007599. The reversal of 151007540 is 45700151.

It can be written as a sum of positive squares in 2 ways, for example, as 94517284 + 56490256 = 9722^2 + 7516^2 .

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, 3775169 + ... + 3775208.

It is an arithmetic number, because the mean of its divisors is an integer number (26426323).

Almost surely, 2151007540 is an apocalyptic number.

151007540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151007540 is an abundant number, since it is smaller than the sum of its proper divisors (166108336).

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

151007540 is a wasteful number, since it uses less digits than its factorization.

151007540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550386 (or 7550384 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 151007540 is about 12288.5125218637. The cubic root of 151007540 is about 532.5162653822.

Adding to 151007540 its reverse (45700151), we get a palindrome (196707691).

The spelling of 151007540 in words is "one hundred fifty-one million, seven thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 7550377 15100754 30201508 37751885 75503770 151007540