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102404000 = 255325601
BaseRepresentation
bin1100001101010…
…00111110100000
321010200122212202
412012220332200
5202203412000
614054512332
72352263636
oct606507640
9233618782
10102404000
1152893706
122a3656a8
13182a5aaa
14d859356
158ecbdd5
hex61a8fa0

102404000 has 48 divisors (see below), whose sum is σ = 251616456. Its totient is φ = 40960000.

The previous prime is 102403979. The next prime is 102404009. The reversal of 102404000 is 404201.

It can be written as a sum of positive squares in 4 ways, for example, as 68624656 + 33779344 = 8284^2 + 5812^2 .

It is not an unprimeable number, because it can be changed into a prime (102404009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8801 + ... + 16800.

Almost surely, 2102404000 is an apocalyptic number.

102404000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102404000 is an abundant number, since it is smaller than the sum of its proper divisors (149212456).

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

102404000 is an equidigital number, since it uses as much as digits as its factorization.

102404000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25626 (or 25608 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 102404000 is about 10119.4861529625. The cubic root of 102404000 is about 467.8489297384.

Adding to 102404000 its reverse (404201), we get a palindrome (102808201).

It can be divided in two parts, 10240 and 4000, that multiplied together give a 4-th power (40960000 = 804).

The spelling of 102404000 in words is "one hundred two million, four hundred four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 160 200 250 400 500 800 1000 2000 4000 25601 51202 102404 128005 204808 256010 409616 512020 640025 819232 1024040 1280050 2048080 2560100 3200125 4096160 5120200 6400250 10240400 12800500 20480800 25601000 51202000 102404000