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23430078 = 2327199787
BaseRepresentation
bin101100101100…
…0001110111110
31122002101000200
41121120032332
521444230303
62154104330
7403103160
oct131301676
948071020
1023430078
1112253401
127a1b0a6
134b14769
14317c930
1520cc3a3
hex16583be

23430078 has 48 divisors (see below), whose sum is σ = 61077120. Its totient is φ = 6341328.

The previous prime is 23430049. The next prime is 23430083. The reversal of 23430078 is 87003432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2500 + ... + 7287.

It is an arithmetic number, because the mean of its divisors is an integer number (1272440).

Almost surely, 223430078 is an apocalyptic number.

23430078 is an abundant number, since it is smaller than the sum of its proper divisors (37647042).

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

23430078 is a wasteful number, since it uses less digits than its factorization.

23430078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821 (or 9818 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 23430078 is about 4840.4625812003. The cubic root of 23430078 is about 286.1483492034.

The spelling of 23430078 in words is "twenty-three million, four hundred thirty thousand, seventy-eight".

Divisors: 1 2 3 6 7 9 14 18 19 21 38 42 57 63 114 126 133 171 266 342 399 798 1197 2394 9787 19574 29361 58722 68509 88083 137018 176166 185953 205527 371906 411054 557859 616581 1115718 1233162 1301671 1673577 2603342 3347154 3905013 7810026 11715039 23430078