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308232628 = 221131225977
BaseRepresentation
bin10010010111110…
…100000110110100
3210110222211200021
4102113310012310
51112401421003
650330254524
710431635254
oct2227640664
9713884607
10308232628
11148a97810
1287287444
134bb21092
142cd17964
151c0d82bd
hex125f41b4

308232628 has 24 divisors (see below), whose sum is σ = 607428864. Its totient is φ = 135585600.

The previous prime is 308232599. The next prime is 308232679. The reversal of 308232628 is 826232803.

It is a junction number, because it is equal to n+sod(n) for n = 308232593 and 308232602.

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, 111625 + ... + 114352.

It is an arithmetic number, because the mean of its divisors is an integer number (25309536).

Almost surely, 2308232628 is an apocalyptic number.

It is an amenable number.

308232628 is a deficient number, since it is larger than the sum of its proper divisors (299196236).

308232628 is a wasteful number, since it uses less digits than its factorization.

308232628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226023 (or 226021 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 308232628 is about 17556.5551290679. Note that the first 3 decimals coincide. The cubic root of 308232628 is about 675.5013215870.

The spelling of 308232628 in words is "three hundred eight million, two hundred thirty-two thousand, six hundred twenty-eight".

Divisors: 1 2 4 11 22 31 44 62 124 341 682 1364 225977 451954 903908 2485747 4971494 7005287 9942988 14010574 28021148 77058157 154116314 308232628