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70968156 = 223723109337
BaseRepresentation
bin1000011101011…
…10001101011100
311221112120000020
410032232031130
5121131440111
611013032140
71521135150
oct416561534
9157476006
1070968156
1137072476
121b925650
131191a3bc
1495d5060
15636c906
hex43ae35c

70968156 has 96 divisors (see below), whose sum is σ = 199879680. Its totient is φ = 19160064.

The previous prime is 70968143. The next prime is 70968169. The reversal of 70968156 is 65186907.

It is an interprime number because it is at equal distance from previous prime (70968143) and next prime (70968169).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210420 + ... + 210756.

It is an arithmetic number, because the mean of its divisors is an integer number (2082080).

Almost surely, 270968156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70968156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99939840).

70968156 is an abundant number, since it is smaller than the sum of its proper divisors (128911524).

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

70968156 is a wasteful number, since it uses less digits than its factorization.

70968156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 70968156 is about 8424.2599674986. The cubic root of 70968156 is about 414.0198594875.

The spelling of 70968156 in words is "seventy million, nine hundred sixty-eight thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 109 138 161 218 276 322 327 337 436 483 644 654 674 763 966 1011 1308 1348 1526 1932 2022 2289 2359 2507 3052 4044 4578 4718 5014 7077 7521 7751 9156 9436 10028 14154 15042 15502 17549 23253 28308 30084 31004 35098 36733 46506 52647 54257 70196 73466 93012 105294 108514 110199 146932 162771 210588 217028 220398 257131 325542 440796 514262 651084 771393 844859 1028524 1542786 1689718 2534577 3085572 3379436 5069154 5914013 10138308 11828026 17742039 23656052 35484078 70968156