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2542503740 = 225718160741
BaseRepresentation
bin1001011110001011…
…1000011100111100
320120012011120110012
42113202320130330
520201340104430
61100142402352
7120001632230
oct22742703474
96505146405
102542503740
1110951a4767
125ab5903b8
133169917aa
141a19565c0
15ed324695
hex978b873c

2542503740 has 24 divisors (see below), whose sum is σ = 6102009312. Its totient is φ = 871715520.

The previous prime is 2542503737. The next prime is 2542503751. The reversal of 2542503740 is 473052452.

It is a junction number, because it is equal to n+sod(n) for n = 2542503697 and 2542503706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9080231 + ... + 9080510.

It is an arithmetic number, because the mean of its divisors is an integer number (254250388).

Almost surely, 22542503740 is an apocalyptic number.

2542503740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2542503740 is an abundant number, since it is smaller than the sum of its proper divisors (3559505572).

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

2542503740 is a wasteful number, since it uses less digits than its factorization.

2542503740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18160757 (or 18160755 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 2542503740 is about 50423.2460279978. The cubic root of 2542503740 is about 1364.8571529549.

The spelling of 2542503740 in words is "two billion, five hundred forty-two million, five hundred three thousand, seven hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 18160741 36321482 72642964 90803705 127125187 181607410 254250374 363214820 508500748 635625935 1271251870 2542503740