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70442008 = 23721323601
BaseRepresentation
bin1000011001011…
…01110000011000
311220112211021021
410030231300120
5121013121013
610553452224
71513514200
oct414556030
9156484237
1070442008
113684313a
121b711074
1311794a80
1494d9400
1562b6a8d
hex432dc18

70442008 has 96 divisors (see below), whose sum is σ = 172942560. Its totient is φ = 26611200.

The previous prime is 70441963. The next prime is 70442023. The reversal of 70442008 is 80024407.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 116908 + ... + 117508.

It is an arithmetic number, because the mean of its divisors is an integer number (1801485).

Almost surely, 270442008 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 70442008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86471280).

70442008 is an abundant number, since it is smaller than the sum of its proper divisors (102500552).

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

70442008 is a wasteful number, since it uses less digits than its factorization.

70442008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 646 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 70442008 is about 8392.9737280656. The cubic root of 70442008 is about 412.9941586840.

The spelling of 70442008 in words is "seventy million, four hundred forty-two thousand, eight".

Divisors: 1 2 4 7 8 13 14 23 26 28 46 49 52 56 91 92 98 104 161 182 184 196 299 322 364 392 598 601 637 644 728 1127 1196 1202 1274 1288 2093 2254 2392 2404 2548 4186 4207 4508 4808 5096 7813 8372 8414 9016 13823 14651 15626 16744 16828 27646 29302 29449 31252 33656 54691 55292 58604 58898 62504 96761 109382 110584 117208 117796 179699 193522 218764 235592 359398 382837 387044 437528 677327 718796 765674 774088 1257893 1354654 1437592 1531348 2515786 2709308 3062696 5031572 5418616 8805251 10063144 17610502 35221004 70442008