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28526946 = 2372329531
BaseRepresentation
bin110110011010…
…0100101100010
31222200022121120
41230310211202
524300330241
62455233110
7464321640
oct154644542
958608546
1028526946
1115114798
129678796
135baa666
143b08190
152787666
hex1b34962

28526946 has 32 divisors (see below), whose sum is σ = 68041728. Its totient is φ = 7795920.

The previous prime is 28526941. The next prime is 28526947. The reversal of 28526946 is 64962582.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 28526898 and 28526907.

It is not an unprimeable number, because it can be changed into a prime (28526941) 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, 13800 + ... + 15731.

It is an arithmetic number, because the mean of its divisors is an integer number (2126304).

Almost surely, 228526946 is an apocalyptic number.

28526946 is an abundant number, since it is smaller than the sum of its proper divisors (39514782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28526946 is a wasteful number, since it uses less digits than its factorization.

28526946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29566.

The product of its digits is 207360, while the sum is 42.

The square root of 28526946 is about 5341.0622538967. The cubic root of 28526946 is about 305.5519736782.

The spelling of 28526946 in words is "twenty-eight million, five hundred twenty-six thousand, nine hundred forty-six".

Divisors: 1 2 3 6 7 14 21 23 42 46 69 138 161 322 483 966 29531 59062 88593 177186 206717 413434 620151 679213 1240302 1358426 2037639 4075278 4754491 9508982 14263473 28526946