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70045015 = 51741101199
BaseRepresentation
bin1000010110011…
…00110101010111
311212210122200211
410023030311113
5120412420030
610541150251
71510241605
oct413146527
9155718624
1070045015
11365a1947
121b55b387
1311686171
149434875
15623912a
hex42ccd57

70045015 has 32 divisors (see below), whose sum is σ = 92534400. Its totient is φ = 50688000.

The previous prime is 70045013. The next prime is 70045021. The reversal of 70045015 is 51054007.

It is not a de Polignac number, because 70045015 - 21 = 70045013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70045013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351886 + ... + 352084.

It is an arithmetic number, because the mean of its divisors is an integer number (2891700).

Almost surely, 270045015 is an apocalyptic number.

70045015 is a deficient number, since it is larger than the sum of its proper divisors (22489385).

70045015 is a wasteful number, since it uses less digits than its factorization.

70045015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 70045015 is about 8369.2899937808. The cubic root of 70045015 is about 412.2168537449.

The spelling of 70045015 in words is "seventy million, forty-five thousand, fifteen".

Divisors: 1 5 17 41 85 101 199 205 505 697 995 1717 3383 3485 4141 8159 8585 16915 20099 20705 40795 70397 100495 138703 341683 351985 693515 824059 1708415 4120295 14009003 70045015