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803215840 = 25572102451
BaseRepresentation
bin101111111000000…
…001100111100000
32001222101120222211
4233320001213200
53121110401330
6211411411504
725622136100
oct5770014740
92058346884
10803215840
11382437a49
121a4bb3b94
13ca53a85b
1478965200
154a7aed2a
hex2fe019e0

803215840 has 72 divisors (see below), whose sum is σ = 2207430792. Its totient is φ = 275385600.

The previous prime is 803215807. The next prime is 803215873. The reversal of 803215840 is 48512308.

It is an interprime number because it is at equal distance from previous prime (803215807) and next prime (803215873).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43386 + ... + 59065.

It is an arithmetic number, because the mean of its divisors is an integer number (30658761).

Almost surely, 2803215840 is an apocalyptic number.

803215840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

803215840 is an abundant number, since it is smaller than the sum of its proper divisors (1404214952).

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

803215840 is a wasteful number, since it uses less digits than its factorization.

803215840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102480 (or 102465 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 803215840 is about 28341.0627888229. The cubic root of 803215840 is about 929.5599876328.

The spelling of 803215840 in words is "eight hundred three million, two hundred fifteen thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 70 80 98 112 140 160 196 224 245 280 392 490 560 784 980 1120 1568 1960 3920 7840 102451 204902 409804 512255 717157 819608 1024510 1434314 1639216 2049020 2868628 3278432 3585785 4098040 5020099 5737256 7171570 8196080 10040198 11474512 14343140 16392160 20080396 22949024 25100495 28686280 40160792 50200990 57372560 80321584 100401980 114745120 160643168 200803960 401607920 803215840