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428077236 = 223291230107
BaseRepresentation
bin11001100000111…
…111000010110100
31002211111120120110
4121200333002310
51334041432421
6110251103020
713415411406
oct3140770264
91084446513
10428077236
111aa702844
12bb441a70
136a8c2352
1440bd2b76
15278aca76
hex1983f0b4

428077236 has 24 divisors (see below), whose sum is σ = 1033290720. Its totient is φ = 137771872.

The previous prime is 428077213. The next prime is 428077253. The reversal of 428077236 is 632770824.

It is a junction number, because it is equal to n+sod(n) for n = 428077194 and 428077203.

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, 614706 + ... + 615401.

It is an arithmetic number, because the mean of its divisors is an integer number (43053780).

Almost surely, 2428077236 is an apocalyptic number.

It is an amenable number.

428077236 is an abundant number, since it is smaller than the sum of its proper divisors (605213484).

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

428077236 is a wasteful number, since it uses less digits than its factorization.

428077236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230143 (or 1230141 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 428077236 is about 20690.0274528576. The cubic root of 428077236 is about 753.6575333823.

The spelling of 428077236 in words is "four hundred twenty-eight million, seventy-seven thousand, two hundred thirty-six".

Divisors: 1 2 3 4 6 12 29 58 87 116 174 348 1230107 2460214 3690321 4920428 7380642 14761284 35673103 71346206 107019309 142692412 214038618 428077236