Search a number
70020526 = 253769859
BaseRepresentation
bin1000010110001…
…10110110101110
311212202102002211
410023012312232
5120411124101
610540441034
71510110322
oct413066656
9155672084
1070020526
1136585504
121b54917a
1311677c84
149429982
156231c51
hex42c6dae

70020526 has 16 divisors (see below), whose sum is σ = 107276400. Its totient is φ = 34265088.

The previous prime is 70020523. The next prime is 70020581. The reversal of 70020526 is 62502007.

It is a super-2 number, since 2×700205262 = 9805748122633352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 70020497 and 70020506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70020521) 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, 81085 + ... + 81943.

It is an arithmetic number, because the mean of its divisors is an integer number (6704775).

Almost surely, 270020526 is an apocalyptic number.

70020526 is a deficient number, since it is larger than the sum of its proper divisors (37255874).

70020526 is a wasteful number, since it uses less digits than its factorization.

70020526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 70020526 is about 8367.8268385525. The cubic root of 70020526 is about 412.1688086642.

The spelling of 70020526 in words is "seventy million, twenty thousand, five hundred twenty-six".