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245523504140 = 22512276175207
BaseRepresentation
bin1110010010101001010…
…1110101110000001100
3212110201221210022020022
43210222111311300030
513010313004113030
6304443020441312
723511205231265
oct3445225656014
9773657708208
10245523504140
11951426876a2
123b7013a9238
131a1ca824785
14bc520a396c
1565bed1ede5
hex392a575c0c

245523504140 has 12 divisors (see below), whose sum is σ = 515599358736. Its totient is φ = 98209401648.

The previous prime is 245523504113. The next prime is 245523504169. The reversal of 245523504140 is 41405325542.

It is a self number, because there is not a number n which added to its sum of digits gives 245523504140.

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, 6138087584 + ... + 6138087623.

It is an arithmetic number, because the mean of its divisors is an integer number (42966613228).

Almost surely, 2245523504140 is an apocalyptic number.

245523504140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245523504140 is an abundant number, since it is smaller than the sum of its proper divisors (270075854596).

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

245523504140 is a wasteful number, since it uses less digits than its factorization.

245523504140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12276175216 (or 12276175214 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 245523504140 its reverse (41405325542), we get a palindrome (286928829682).

The spelling of 245523504140 in words is "two hundred forty-five billion, five hundred twenty-three million, five hundred four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 12276175207 24552350414 49104700828 61380876035 122761752070 245523504140