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70262028 = 223241181263
BaseRepresentation
bin1000011000000…
…01110100001100
311220012200101100
410030001310030
5120441341103
610545543100
71512134364
oct414016414
9156180340
1070262028
113672a9a1
121b644a90
1311730b85
14948d9a4
15627d5a3
hex4301d0c

70262028 has 72 divisors (see below), whose sum is σ = 183639456. Its totient is φ = 22636800.

The previous prime is 70262021. The next prime is 70262063. The reversal of 70262028 is 82026207.

It is a junction number, because it is equal to n+sod(n) for n = 70261992 and 70262010.

It is not an unprimeable number, because it can be changed into a prime (70262021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267025 + ... + 267287.

It is an arithmetic number, because the mean of its divisors is an integer number (2550548).

Almost surely, 270262028 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 70262028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91819728).

70262028 is an abundant number, since it is smaller than the sum of its proper divisors (113377428).

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

70262028 is a wasteful number, since it uses less digits than its factorization.

70262028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 70262028 is about 8382.2448067329. The cubic root of 70262028 is about 412.6421240293.

The spelling of 70262028 in words is "seventy million, two hundred sixty-two thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 41 82 123 164 181 246 263 362 369 492 526 543 724 738 789 1052 1086 1476 1578 1629 2172 2367 3156 3258 4734 6516 7421 9468 10783 14842 21566 22263 29684 32349 43132 44526 47603 64698 66789 89052 95206 97047 129396 133578 142809 190412 194094 267156 285618 388188 428427 571236 856854 1713708 1951723 3903446 5855169 7806892 11710338 17565507 23420676 35131014 70262028