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70015701 = 3731131821
BaseRepresentation
bin1000010110001…
…01101011010101
311212202011111010
410023011223111
5120411000301
610540402433
71510060260
oct413055325
9155664433
1070015701
1136581918
121b546419
1311675a12
149427cd7
1562305d6
hex42c5ad5

70015701 has 32 divisors (see below), whose sum is σ = 111108096. Its totient is φ = 38376000.

The previous prime is 70015669. The next prime is 70015723. The reversal of 70015701 is 10751007.

It is not a de Polignac number, because 70015701 - 25 = 70015669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70015601) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 84871 + ... + 85691.

It is an arithmetic number, because the mean of its divisors is an integer number (3472128).

Almost surely, 270015701 is an apocalyptic number.

It is an amenable number.

70015701 is a deficient number, since it is larger than the sum of its proper divisors (41092395).

70015701 is a wasteful number, since it uses less digits than its factorization.

70015701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993.

The product of its (nonzero) digits is 245, while the sum is 21.

The square root of 70015701 is about 8367.5385269504. The cubic root of 70015701 is about 412.1593411537.

Adding to 70015701 its reverse (10751007), we get a palindrome (80766708).

The spelling of 70015701 in words is "seventy million, fifteen thousand, seven hundred one".

Divisors: 1 3 7 21 31 93 131 217 393 651 821 917 2463 2751 4061 5747 12183 17241 25451 28427 76353 85281 107551 178157 322653 534471 752857 2258571 3334081 10002243 23338567 70015701