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226631740 = 22511331587
BaseRepresentation
bin11011000001000…
…10000000111100
3120210110002022011
431200202000330
5431004203430
634253301004
75421223636
oct1540420074
9523402264
10226631740
11106a22865
1263a94764
1337c5012a
1422155a56
1514d6a22a
hexd82203c

226631740 has 12 divisors (see below), whose sum is σ = 475926696. Its totient is φ = 90652688.

The previous prime is 226631737. The next prime is 226631761. The reversal of 226631740 is 47136622.

It is a super-3 number, since 3×2266317403 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5665774 + ... + 5665813.

It is an arithmetic number, because the mean of its divisors is an integer number (39660558).

Almost surely, 2226631740 is an apocalyptic number.

226631740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226631740 is an abundant number, since it is smaller than the sum of its proper divisors (249294956).

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

226631740 is a wasteful number, since it uses less digits than its factorization.

226631740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11331596 (or 11331594 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 226631740 is about 15054.2930753988. The cubic root of 226631740 is about 609.6869665046.

The spelling of 226631740 in words is "two hundred twenty-six million, six hundred thirty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 11331587 22663174 45326348 56657935 113315870 226631740