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207104028 = 223196114891
BaseRepresentation
bin11000101100000…
…10100000011100
3112102200222022120
430112002200130
5411004312103
632314542540
75063232555
oct1426024034
9472628276
10207104028
11a69a535a
1259437a50
1333ba3981
141d71132c
15132ae253
hexc58281c

207104028 has 48 divisors (see below), whose sum is σ = 517050240. Its totient is φ = 64324800.

The previous prime is 207103991. The next prime is 207104063. The reversal of 207104028 is 820401702.

It is a junction number, because it is equal to n+sod(n) for n = 207103989 and 207104007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6463 + ... + 21353.

It is an arithmetic number, because the mean of its divisors is an integer number (10771880).

Almost surely, 2207104028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207104028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258525120).

207104028 is an abundant number, since it is smaller than the sum of its proper divisors (309946212).

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

207104028 is a wasteful number, since it uses less digits than its factorization.

207104028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14978 (or 14976 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 207104028 is about 14391.1093387550. The cubic root of 207104028 is about 591.6472476952.

The spelling of 207104028 in words is "two hundred seven million, one hundred four thousand, twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 61 76 114 122 183 228 244 366 732 1159 2318 3477 4636 6954 13908 14891 29782 44673 59564 89346 178692 282929 565858 848787 908351 1131716 1697574 1816702 2725053 3395148 3633404 5450106 10900212 17258669 34517338 51776007 69034676 103552014 207104028