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228060494 = 21913591663
BaseRepresentation
bin11011001011111…
…10110101001110
3120220010200011222
431211332311032
5431340413434
634344043342
75436324254
oct1545766516
9526120158
10228060494
11107809252
1264463552
133833054c
14224085d4
151504d72e
hexd97ed4e

228060494 has 16 divisors (see below), whose sum is σ = 345047040. Its totient is φ = 113049240.

The previous prime is 228060493. The next prime is 228060523. The reversal of 228060494 is 494060822.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228060493) 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, 136307 + ... + 137969.

It is an arithmetic number, because the mean of its divisors is an integer number (21565440).

Almost surely, 2228060494 is an apocalyptic number.

228060494 is a deficient number, since it is larger than the sum of its proper divisors (116986546).

228060494 is a wasteful number, since it uses less digits than its factorization.

228060494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 228060494 is about 15101.6718941977. The cubic root of 228060494 is about 610.9654995908.

The spelling of 228060494 in words is "two hundred twenty-eight million, sixty thousand, four hundred ninety-four".

Divisors: 1 2 191 359 382 718 1663 3326 68569 137138 317633 597017 635266 1194034 114030247 228060494