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419979028 = 22747319133
BaseRepresentation
bin11001000010000…
…101111100010100
31002021021010220211
4121002011330110
51330003312103
6105401335204
713256522440
oct3102057424
91067233824
10419979028
111a6081507
12b8797504
1369018301
143dac5820
1526d0d36d
hex19085f14

419979028 has 24 divisors (see below), whose sum is σ = 857832192. Its totient is φ = 176160864.

The previous prime is 419979023. The next prime is 419979061. The reversal of 419979028 is 820979914.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419979023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158251 + ... + 160882.

It is an arithmetic number, because the mean of its divisors is an integer number (35743008).

Almost surely, 2419979028 is an apocalyptic number.

It is an amenable number.

419979028 is an abundant number, since it is smaller than the sum of its proper divisors (437853164).

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

419979028 is a wasteful number, since it uses less digits than its factorization.

419979028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319191 (or 319189 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 419979028 is about 20493.3898611235. The cubic root of 419979028 is about 748.8747737023.

The spelling of 419979028 in words is "four hundred nineteen million, nine hundred seventy-nine thousand, twenty-eight".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1316 319133 638266 1276532 2233931 4467862 8935724 14999251 29998502 59997004 104994757 209989514 419979028