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70012215145 = 567667331319
BaseRepresentation
bin100000100110100001…
…1011001111101101001
320200201021100000220101
41001031003121331221
52121341111341040
652055124425401
75025653003215
oct1011503317551
9220637300811
1070012215145
1127768085534
121169ab48261
1367a9b33552
1435624b5945
151c4b72509a
hex104d0d9f69

70012215145 has 16 divisors (see below), whose sum is σ = 85284109440. Its totient is φ = 55163775744.

The previous prime is 70012215121. The next prime is 70012215157. The reversal of 70012215145 is 54151221007.

It is a cyclic number.

It is not a de Polignac number, because 70012215145 - 215 = 70012182377 is a prime.

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, 2219796 + ... + 2251114.

It is an arithmetic number, because the mean of its divisors is an integer number (5330256840).

Almost surely, 270012215145 is an apocalyptic number.

It is an amenable number.

70012215145 is a deficient number, since it is larger than the sum of its proper divisors (15271894295).

70012215145 is a wasteful number, since it uses less digits than its factorization.

70012215145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38064.

The product of its (nonzero) digits is 2800, while the sum is 28.

The spelling of 70012215145 in words is "seventy billion, twelve million, two hundred fifteen thousand, one hundred forty-five".

Divisors: 1 5 67 335 6673 31319 33365 156595 447091 2098373 2235455 10491865 208991687 1044958435 14002443029 70012215145