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34445915 = 575211889
BaseRepresentation
bin1000001101100…
…1101001011011
32101211000220122
42003121221123
532304232130
63230143455
7565533260
oct203315133
971730818
1034445915
11184977a9
12b651b8b
1371a07ca
144809267
1530562e5
hex20d9a5b

34445915 has 16 divisors (see below), whose sum is σ = 47355840. Its totient is φ = 23562240.

The previous prime is 34445909. The next prime is 34445923. The reversal of 34445915 is 51954443.

34445915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 34445915 - 214 = 34429531 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17291 + ... + 19179.

It is an arithmetic number, because the mean of its divisors is an integer number (2959740).

Almost surely, 234445915 is an apocalyptic number.

34445915 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

34445915 is a deficient number, since it is larger than the sum of its proper divisors (12909925).

34445915 is a wasteful number, since it uses less digits than its factorization.

34445915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422.

The product of its digits is 43200, while the sum is 35.

The square root of 34445915 is about 5869.0642354638. The cubic root of 34445915 is about 325.3712995095.

The spelling of 34445915 in words is "thirty-four million, four hundred forty-five thousand, nine hundred fifteen".

Divisors: 1 5 7 35 521 1889 2605 3647 9445 13223 18235 66115 984169 4920845 6889183 34445915