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245236992 = 28371121329
BaseRepresentation
bin11101001111000…
…00010100000000
3122002110022220120
432213200110000
51000240040432
640200140240
76035323440
oct1647402400
9562408816
10245236992
11116480200
126a167680
133ba65760
14247da120
15167e2c2c
hexe9e0500

245236992 has 432 divisors, whose sum is σ = 913422720. Its totient is φ = 56770560.

The previous prime is 245236991. The next prime is 245236993. The reversal of 245236992 is 299632542.

It is an interprime number because it is at equal distance from previous prime (245236991) and next prime (245236993).

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (233280) is a multiple of the sum of its prime factors (90).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245236991) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8456434 + ... + 8456462.

Almost surely, 2245236992 is an apocalyptic number.

245236992 is a gapful number since it is divisible by the number (22) 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 245236992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456711360).

245236992 is an abundant number, since it is smaller than the sum of its proper divisors (668185728).

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

245236992 is a wasteful number, since it uses less digits than its factorization.

245236992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 65 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 245236992 is about 15660.0444443814. The cubic root of 245236992 is about 625.9341695347.

The spelling of 245236992 in words is "two hundred forty-five million, two hundred thirty-six thousand, nine hundred ninety-two".