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250211512020 = 22354170191867
BaseRepresentation
bin1110100100000111000…
…1001010111011010100
3212220211200002210001210
43221001301022323110
513044413121341040
6310540125021420
724035321521611
oct3510161127324
9786750083053
10250211512020
119712896a378
12405ab3b4870
131a796b47032
14c17894d508
156796699480
hex3a41c4aed4

250211512020 has 24 divisors (see below), whose sum is σ = 700592233824. Its totient is φ = 66723069856.

The previous prime is 250211511997. The next prime is 250211512037. The reversal of 250211512020 is 20215112052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2085095874 + ... + 2085095993.

It is an arithmetic number, because the mean of its divisors is an integer number (29191343076).

Almost surely, 2250211512020 is an apocalyptic number.

250211512020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250211512020 is an abundant number, since it is smaller than the sum of its proper divisors (450380721804).

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

250211512020 is a wasteful number, since it uses less digits than its factorization.

250211512020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170191879 (or 4170191877 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

Adding to 250211512020 its reverse (20215112052), we get a palindrome (270426624072).

The spelling of 250211512020 in words is "two hundred fifty billion, two hundred eleven million, five hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4170191867 8340383734 12510575601 16680767468 20850959335 25021151202 41701918670 50042302404 62552878005 83403837340 125105756010 250211512020