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1017842600920 = 235201611262143
BaseRepresentation
bin11101100111111000010…
…01011000101111011000
310121022020012102110120011
432303330021120233120
5113134020201212140
62055331311211304
7133352042233465
oct16637411305730
93538205373504
101017842600920
11362734682072
12145321516b34
1374c9ca09472
1437399dc066c
151b722dcccea
hexecfc258bd8

1017842600920 has 32 divisors (see below), whose sum is σ = 2290261259520. Its totient is φ = 407116523520.

The previous prime is 1017842600891. The next prime is 1017842600939. The reversal of 1017842600920 is 290062487101.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 175369 + ... + 1437511.

It is an arithmetic number, because the mean of its divisors is an integer number (71570664360).

Almost surely, 21017842600920 is an apocalyptic number.

1017842600920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017842600920 is an abundant number, since it is smaller than the sum of its proper divisors (1272418658600).

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

1017842600920 is a wasteful number, since it uses less digits than its factorization.

1017842600920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282315 (or 1282311 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 1017842600920 in words is "one trillion, seventeen billion, eight hundred forty-two million, six hundred thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 20161 40322 80644 100805 161288 201610 403220 806440 1262143 2524286 5048572 6310715 10097144 12621430 25242860 50485720 25446065023 50892130046 101784260092 127230325115 203568520184 254460650230 508921300460 1017842600920