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228105454 = 2432652389
BaseRepresentation
bin11011001100010…
…01110011101110
3120220012221212011
431212021303232
5431343333304
634345031434
75436602323
oct1546116356
9526187764
10228105454
1110783a005
126448557a
1338347b55
142241ab4a
151505bc04
hexd989cee

228105454 has 8 divisors (see below), whose sum is σ = 350115480. Its totient is φ = 111400296.

The previous prime is 228105433. The next prime is 228105461. The reversal of 228105454 is 454501822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2281054542 = 104064196289092232, which contains 22 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, 1326109 + ... + 1326280.

It is an arithmetic number, because the mean of its divisors is an integer number (43764435).

Almost surely, 2228105454 is an apocalyptic number.

228105454 is a deficient number, since it is larger than the sum of its proper divisors (122010026).

228105454 is a wasteful number, since it uses less digits than its factorization.

228105454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652434.

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 228105454 is about 15103.1603977446. The cubic root of 228105454 is about 611.0056456701.

The spelling of 228105454 in words is "two hundred twenty-eight million, one hundred five thousand, four hundred fifty-four".

Divisors: 1 2 43 86 2652389 5304778 114052727 228105454