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2131240548 = 223732432923
BaseRepresentation
bin111111100001000…
…0010011001100100
312111112022020102010
41333002002121210
513331044144143
6551251514220
7103546150203
oct17702023144
95445266363
102131240548
119a4036628
124b58b8970
1327c7086a8
1416309d23a
15c7188a33
hex7f082664

2131240548 has 24 divisors (see below), whose sum is σ = 5041018528. Its totient is φ = 700681536.

The previous prime is 2131240543. The next prime is 2131240561. The reversal of 2131240548 is 8450421312.

It is not an unprimeable number, because it can be changed into a prime (2131240541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215586 + ... + 1217337.

Almost surely, 22131240548 is an apocalyptic number.

It is an amenable number.

2131240548 is an abundant number, since it is smaller than the sum of its proper divisors (2909777980).

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

2131240548 is a wasteful number, since it uses less digits than its factorization.

2131240548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433003 (or 2433001 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2131240548 is about 46165.3609105355. The cubic root of 2131240548 is about 1286.8980913277.

The spelling of 2131240548 in words is "two billion, one hundred thirty-one million, two hundred forty thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 73 146 219 292 438 876 2432923 4865846 7298769 9731692 14597538 29195076 177603379 355206758 532810137 710413516 1065620274 2131240548