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70714428 = 223191931607
BaseRepresentation
bin1000011011100…
…00010000111100
311221001122221220
410031300100330
5121100330203
611003353340
71516030341
oct415602074
9157048856
1070714428
1136a09884
121b822850
131185ba75
14956a7c8
15631c653
hex437043c

70714428 has 48 divisors (see below), whose sum is σ = 174693120. Its totient is φ = 22201344.

The previous prime is 70714421. The next prime is 70714471. The reversal of 70714428 is 82441707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70714421) by changing a digit.

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, 43201 + ... + 44807.

It is an arithmetic number, because the mean of its divisors is an integer number (3639440).

Almost surely, 270714428 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 70714428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87346560).

70714428 is an abundant number, since it is smaller than the sum of its proper divisors (103978692).

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

70714428 is a wasteful number, since it uses less digits than its factorization.

70714428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 70714428 is about 8409.1871188599. The cubic root of 70714428 is about 413.5258638838.

The spelling of 70714428 in words is "seventy million, seven hundred fourteen thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 193 228 386 579 772 1158 1607 2316 3214 3667 4821 6428 7334 9642 11001 14668 19284 22002 30533 44004 61066 91599 122132 183198 310151 366396 620302 930453 1240604 1860906 3721812 5892869 11785738 17678607 23571476 35357214 70714428