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228396884625 = 37537139181
BaseRepresentation
bin1101010010110110000…
…0111110001010010001
3210211112101000220000000
43110231200332022101
512220224100302000
6252531333520213
722333613326050
oct3245540761221
9724471026000
10228396884625
11889540a5998
12383217a3069
13186cb52a4a0
14b0a9664397
155e1b486000
hex352d83e291

228396884625 has 256 divisors, whose sum is σ = 526203525120. Its totient is φ = 96367968000.

The previous prime is 228396884557. The next prime is 228396884629. The reversal of 228396884625 is 526488693822.

228396884625 is a `hidden beast` number, since 2 + 2 + 8 + 3 + 96 + 88 + 462 + 5 = 666.

It is not a de Polignac number, because 228396884625 - 215 = 228396851857 is a prime.

It is a super-2 number, since 2×2283968846252 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (228396884629) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 24872535 + ... + 24881715.

It is an arithmetic number, because the mean of its divisors is an integer number (2055482520).

Almost surely, 2228396884625 is an apocalyptic number.

228396884625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228396884625 is an abundant number, since it is smaller than the sum of its proper divisors (297806640495).

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

228396884625 is an frugal number, since it uses more digits than its factorization.

228396884625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9237 (or 9209 counting only the distinct ones).

The product of its digits is 79626240, while the sum is 63.

The spelling of 228396884625 in words is "two hundred twenty-eight billion, three hundred ninety-six million, eight hundred eighty-four thousand, six hundred twenty-five".