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70120835 = 517824951
BaseRepresentation
bin1000010110111…
…11010110000011
311212221111200222
410023133112003
5120422331320
610542533255
71511005631
oct413372603
9155844628
1070120835
1136643904
121b59722b
13116b1825
149454351
156251825
hex42df583

70120835 has 8 divisors (see below), whose sum is σ = 89094816. Its totient is φ = 52796800.

The previous prime is 70120829. The next prime is 70120837. The reversal of 70120835 is 53802107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70120835 - 226 = 3011971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70120837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412391 + ... + 412560.

It is an arithmetic number, because the mean of its divisors is an integer number (11136852).

Almost surely, 270120835 is an apocalyptic number.

70120835 is a deficient number, since it is larger than the sum of its proper divisors (18973981).

70120835 is a wasteful number, since it uses less digits than its factorization.

70120835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824973.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 70120835 is about 8373.8184241121. The cubic root of 70120835 is about 412.3655343783.

The spelling of 70120835 in words is "seventy million, one hundred twenty thousand, eight hundred thirty-five".

Divisors: 1 5 17 85 824951 4124755 14024167 70120835