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225740370000 = 243547524679
BaseRepresentation
bin1101001000111100101…
…1001011000001010000
3210120200020022222000110
43102033023023001100
512144304013320000
6251411555321320
722211025325335
oct3221713130120
9716606288013
10225740370000
1187810610162
12378bbbb0240
131839705ab42
14acd691098c
155d13140850
hex348f2cb050

225740370000 has 100 divisors (see below), whose sum is σ = 728720109920. Its totient is φ = 60197424000.

The previous prime is 225740369993. The next prime is 225740370007. The reversal of 225740370000 is 73047522.

It is an interprime number because it is at equal distance from previous prime (225740369993) and next prime (225740370007).

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 225740370000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225740370007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3732340 + ... + 3792339.

Almost surely, 2225740370000 is an apocalyptic number.

225740370000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225740370000 is an abundant number, since it is smaller than the sum of its proper divisors (502979739920).

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

225740370000 is an equidigital number, since it uses as much as digits as its factorization.

225740370000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524710 (or 7524689 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

It can be divided in two parts, 2257403 and 70000, that added together give a triangular number (2327403 = T2157).

The spelling of 225740370000 in words is "two hundred twenty-five billion, seven hundred forty million, three hundred seventy thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 150 200 240 250 300 375 400 500 600 625 750 1000 1200 1250 1500 1875 2000 2500 3000 3750 5000 6000 7500 10000 15000 30000 7524679 15049358 22574037 30098716 37623395 45148074 60197432 75246790 90296148 112870185 120394864 150493580 180592296 188116975 225740370 300987160 361184592 376233950 451480740 564350925 601974320 752467900 902961480 940584875 1128701850 1504935800 1805922960 1881169750 2257403700 2821754625 3009871600 3762339500 4514807400 4702924375 5643509250 7524679000 9029614800 9405848750 11287018500 14108773125 15049358000 18811697500 22574037000 28217546250 37623395000 45148074000 56435092500 75246790000 112870185000 225740370000