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268478974 = 2711890697
BaseRepresentation
bin10000000000001…
…010100111111110
3200201012010220201
4100000022213332
51022212311344
642350234114
76440014351
oct2000124776
9621163821
10268478974
11128605255
1275ab593a
13438126ca
142792a298
15188844d4
hex1000a9fe

268478974 has 8 divisors (see below), whose sum is σ = 408390768. Its totient is φ = 132348720.

The previous prime is 268478963. The next prime is 268478981. The reversal of 268478974 is 479874862.

It is a happy number.

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

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, 945207 + ... + 945490.

It is an arithmetic number, because the mean of its divisors is an integer number (51048846).

Almost surely, 2268478974 is an apocalyptic number.

268478974 is a deficient number, since it is larger than the sum of its proper divisors (139911794).

268478974 is a wasteful number, since it uses less digits than its factorization.

268478974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890770.

The product of its digits is 5419008, while the sum is 55.

The square root of 268478974 is about 16385.3280101437. The cubic root of 268478974 is about 645.1144351573.

The spelling of 268478974 in words is "two hundred sixty-eight million, four hundred seventy-eight thousand, nine hundred seventy-four".

Divisors: 1 2 71 142 1890697 3781394 134239487 268478974