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28406035 = 57223712
BaseRepresentation
bin110110001011…
…1000100010011
31222110011202101
41230113010103
524232443120
62452501231
7463306300
oct154270423
958404671
1028406035
1115041969
12961a817
135b67608
143ab60a7
15276190a
hex1b17113

28406035 has 36 divisors (see below), whose sum is σ = 41967504. Its totient is φ = 18369120.

The previous prime is 28406029. The next prime is 28406069. The reversal of 28406035 is 53060482.

It is not a de Polignac number, because 28406035 - 29 = 28405523 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28405994 and 28406012.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 400050 + ... + 400120.

It is an arithmetic number, because the mean of its divisors is an integer number (1165764).

Almost surely, 228406035 is an apocalyptic number.

28406035 is a deficient number, since it is larger than the sum of its proper divisors (13561469).

28406035 is an equidigital number, since it uses as much as digits as its factorization.

28406035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 28406035 is about 5329.7312314975. The cubic root of 28406035 is about 305.1196699621.

The spelling of 28406035 in words is "twenty-eight million, four hundred six thousand, thirty-five".

Divisors: 1 5 7 23 35 49 71 115 161 245 355 497 805 1127 1633 2485 3479 5041 5635 8165 11431 17395 25205 35287 57155 80017 115943 176435 247009 400085 579715 811601 1235045 4058005 5681207 28406035