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2858907420 = 2233531672549
BaseRepresentation
bin1010101001100111…
…0111011100011100
321101020112112201000
42222121313130130
521323340014140
61151404150300
7130563212025
oct25231673434
97336475630
102858907420
111237862506
12679538390
133673b3ac5
141d1999c4c
1511aec3a30
hexaa67771c

2858907420 has 192 divisors, whose sum is σ = 9321984000. Its totient is φ = 726485760.

The previous prime is 2858907407. The next prime is 2858907433. The reversal of 2858907420 is 247098582.

2858907420 is a `hidden beast` number, since 28 + 589 + 0 + 7 + 42 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2858907407) and next prime (2858907433).

It is a super-2 number, since 2×28589074202 = 16346703272262112800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1120306 + ... + 1122854.

It is an arithmetic number, because the mean of its divisors is an integer number (48552000).

Almost surely, 22858907420 is an apocalyptic number.

2858907420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2858907420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4660992000).

2858907420 is an abundant number, since it is smaller than the sum of its proper divisors (6463076580).

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

2858907420 is a wasteful number, since it uses less digits than its factorization.

2858907420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 2858907420 is about 53468.7518088837. The cubic root of 2858907420 is about 1419.2754718196.

The spelling of 2858907420 in words is "two billion, eight hundred fifty-eight million, nine hundred seven thousand, four hundred twenty".