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55076970 = 23513141223
BaseRepresentation
bin1101001000011…
…0100001101010
310211122012101210
43102012201222
5103044430340
65244253550
71236101154
oct322064152
9124565353
1055076970
11290a9163
12165412b6
13b545230
147459ad4
154c7e180
hex348686a

55076970 has 32 divisors (see below), whose sum is σ = 142353792. Its totient is φ = 13557312.

The previous prime is 55076963. The next prime is 55076971. The reversal of 55076970 is 7967055.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55076971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70222 + ... + 71001.

It is an arithmetic number, because the mean of its divisors is an integer number (4448556).

Almost surely, 255076970 is an apocalyptic number.

55076970 is an abundant number, since it is smaller than the sum of its proper divisors (87276822).

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

55076970 is a wasteful number, since it uses less digits than its factorization.

55076970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141246.

The product of its (nonzero) digits is 66150, while the sum is 39.

The square root of 55076970 is about 7421.3859891532. The cubic root of 55076970 is about 380.4725653553.

The spelling of 55076970 in words is "fifty-five million, seventy-six thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 141223 282446 423669 706115 847338 1412230 1835899 2118345 3671798 4236690 5507697 9179495 11015394 18358990 27538485 55076970