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420151040 = 285328243
BaseRepresentation
bin11001000010101…
…111111100000000
31002021120212212122
4121002233330000
51330024313130
6105405143412
713261140101
oct3102577400
91067525778
10420151040
111a6189771
12b885ab68
13690786aa
143db2c3a8
1526d442e5
hex190aff00

420151040 has 36 divisors (see below), whose sum is σ = 1006396104. Its totient is φ = 168059904.

The previous prime is 420151031. The next prime is 420151049. The reversal of 420151040 is 40151024.

It is an interprime number because it is at equal distance from previous prime (420151031) and next prime (420151049).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420151049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162842 + ... + 165401.

Almost surely, 2420151040 is an apocalyptic number.

420151040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420151040 is an abundant number, since it is smaller than the sum of its proper divisors (586245064).

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

420151040 is an equidigital number, since it uses as much as digits as its factorization.

420151040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328264 (or 328250 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 420151040 is about 20497.5861993553. The cubic root of 420151040 is about 748.9769993347.

The spelling of 420151040 in words is "four hundred twenty million, one hundred fifty-one thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 328243 656486 1312972 1641215 2625944 3282430 5251888 6564860 10503776 13129720 21007552 26259440 42015104 52518880 84030208 105037760 210075520 420151040