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26430428 = 226798621
BaseRepresentation
bin110010011010…
…0101111011100
31211201210201202
41210310233130
523231233203
62342255032
7440440433
oct144645734
954653652
1026430428
1113a12632
128a27478
13562530b
14372011a
1524c1388
hex1934bdc

26430428 has 12 divisors (see below), whose sum is σ = 46944072. Its totient is φ = 13017840.

The previous prime is 26430409. The next prime is 26430431. The reversal of 26430428 is 82403462.

It is a self number, because there is not a number n which added to its sum of digits gives 26430428.

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, 49043 + ... + 49578.

It is an arithmetic number, because the mean of its divisors is an integer number (3912006).

Almost surely, 226430428 is an apocalyptic number.

It is an amenable number.

26430428 is a deficient number, since it is larger than the sum of its proper divisors (20513644).

26430428 is a wasteful number, since it uses less digits than its factorization.

26430428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98692 (or 98690 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 26430428 is about 5141.0531994913. The cubic root of 26430428 is about 297.8754640809.

The spelling of 26430428 in words is "twenty-six million, four hundred thirty thousand, four hundred twenty-eight".

Divisors: 1 2 4 67 134 268 98621 197242 394484 6607607 13215214 26430428