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70531496 = 23719151439
BaseRepresentation
bin1000011010000…
…11100110101000
311220201101000122
410031003212220
5121024001441
610555422412
71514336120
oct415034650
9156641018
1070531496
11368a43a2
121b754a08
13117c6719
14951dc80
1562d334b
hex43439a8

70531496 has 64 divisors (see below), whose sum is σ = 160512000. Its totient is φ = 28382400.

The previous prime is 70531469. The next prime is 70531543. The reversal of 70531496 is 69413507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160445 + ... + 160883.

It is an arithmetic number, because the mean of its divisors is an integer number (2508000).

Almost surely, 270531496 is an apocalyptic number.

70531496 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70531496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80256000).

70531496 is an abundant number, since it is smaller than the sum of its proper divisors (89980504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70531496 is a wasteful number, since it uses less digits than its factorization.

70531496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 70531496 is about 8398.3031619488. The cubic root of 70531496 is about 413.1689709546.

The spelling of 70531496 in words is "seventy million, five hundred thirty-one thousand, four hundred ninety-six".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 151 152 266 302 439 532 604 878 1057 1064 1208 1756 2114 2869 3073 3512 4228 5738 6146 8341 8456 11476 12292 16682 20083 22952 24584 33364 40166 58387 66289 66728 80332 116774 132578 160664 233548 265156 464023 467096 530312 928046 1259491 1856092 2518982 3712184 5037964 8816437 10075928 17632874 35265748 70531496