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70234956 = 2232111710433
BaseRepresentation
bin1000010111110…
…11001101001100
311220011022020200
410023323031030
5120440004311
610545213500
71511662431
oct413731514
9156138220
1070234956
1136711620
121b631290
131172175c
149483b88
156275556
hex42fb34c

70234956 has 72 divisors (see below), whose sum is σ = 205090704. Its totient is φ = 20029440.

The previous prime is 70234951. The next prime is 70234993. The reversal of 70234956 is 65943207.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 70234956.

It is not an unprimeable number, because it can be changed into a prime (70234951) 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, 1516 + ... + 11948.

It is an arithmetic number, because the mean of its divisors is an integer number (2848482).

Almost surely, 270234956 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 70234956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102545352).

70234956 is an abundant number, since it is smaller than the sum of its proper divisors (134855748).

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

70234956 is a wasteful number, since it uses less digits than its factorization.

70234956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10471 (or 10466 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 70234956 is about 8380.6298092685. The cubic root of 70234956 is about 412.5891201383.

The spelling of 70234956 in words is "seventy million, two hundred thirty-four thousand, nine hundred fifty-six".

Divisors: 1 2 3 4 6 9 11 12 17 18 22 33 34 36 44 51 66 68 99 102 132 153 187 198 204 306 374 396 561 612 748 1122 1683 2244 3366 6732 10433 20866 31299 41732 62598 93897 114763 125196 177361 187794 229526 344289 354722 375588 459052 532083 688578 709444 1032867 1064166 1377156 1596249 1950971 2065734 2128332 3192498 3901942 4131468 5852913 6384996 7803884 11705826 17558739 23411652 35117478 70234956