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23428270 = 2561193199
BaseRepresentation
bin101100101011…
…1110010101110
31122002021112201
41121113302232
521444201040
62154052114
7403064665
oct131276256
948067481
1023428270
1112252008
127a1a03a
134b139a8
14317bddc
1520cba9a
hex1657cae

23428270 has 32 divisors (see below), whose sum is σ = 43300800. Its totient is φ = 9123840.

The previous prime is 23428267. The next prime is 23428291. The reversal of 23428270 is 7282432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117631 + ... + 117829.

It is an arithmetic number, because the mean of its divisors is an integer number (1353150).

Almost surely, 223428270 is an apocalyptic number.

23428270 is a deficient number, since it is larger than the sum of its proper divisors (19872530).

23428270 is a wasteful number, since it uses less digits than its factorization.

23428270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 23428270 is about 4840.2758185872. The cubic root of 23428270 is about 286.1409887282.

The spelling of 23428270 in words is "twenty-three million, four hundred twenty-eight thousand, two hundred seventy".

Divisors: 1 2 5 10 61 122 193 199 305 386 398 610 965 995 1930 1990 11773 12139 23546 24278 38407 58865 60695 76814 117730 121390 192035 384070 2342827 4685654 11714135 23428270