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228996201 = 3729337217
BaseRepresentation
bin11011010011000…
…11010001101001
3120221220012201210
431221203101221
5432110334301
634420103333
75450302260
oct1551432151
9527805653
10228996201
11108298265
1264834b49
133859a415
14225ad5d7
1515185ad6
hexda63469

228996201 has 16 divisors (see below), whose sum is σ = 350146944. Its totient is φ = 130404864.

The previous prime is 228996197. The next prime is 228996221. The reversal of 228996201 is 102699822.

228996201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228996201 - 22 = 228996197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228996201.

It is not an unprimeable number, because it can be changed into a prime (228996221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12456 + ... + 24761.

It is an arithmetic number, because the mean of its divisors is an integer number (21884184).

Almost surely, 2228996201 is an apocalyptic number.

228996201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

228996201 is a deficient number, since it is larger than the sum of its proper divisors (121150743).

228996201 is a wasteful number, since it uses less digits than its factorization.

228996201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37520.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 228996201 is about 15132.6204274078. The cubic root of 228996201 is about 611.7999340706.

The spelling of 228996201 in words is "two hundred twenty-eight million, nine hundred ninety-six thousand, two hundred one".

Divisors: 1 3 7 21 293 879 2051 6153 37217 111651 260519 781557 10904581 32713743 76332067 228996201