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245625240 = 233572371129
BaseRepresentation
bin11101010001111…
…11000110011000
3122010012001111010
432220333012120
51000340001430
640212333520
76041531400
oct1650770630
9563161433
10245625240
11116715973
126a3142a0
133bb703a3
142489b800
151686ccb0
hexea3f198

245625240 has 192 divisors, whose sum is σ = 881128800. Its totient is φ = 54577152.

The previous prime is 245625221. The next prime is 245625253. The reversal of 245625240 is 42526542.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 245625198 and 245625207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 216996 + ... + 218124.

Almost surely, 2245625240 is an apocalyptic number.

245625240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 245625240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440564400).

245625240 is an abundant number, since it is smaller than the sum of its proper divisors (635503560).

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

245625240 is a wasteful number, since it uses less digits than its factorization.

245625240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 1183 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 245625240 is about 15672.4356754143. The cubic root of 245625240 is about 626.2643121657.

The spelling of 245625240 in words is "two hundred forty-five million, six hundred twenty-five thousand, two hundred forty".