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70102704 = 24371979139
BaseRepresentation
bin1000010110110…
…10111010110000
311212220120211110
410023122322300
5120421241304
610542313320
71510602030
oct413327260
9155816743
1070102704
1136631221
121b588840
13116a64b9
14944b8c0
15624b289
hex42daeb0

70102704 has 160 divisors (see below), whose sum is σ = 222208000. Its totient is φ = 18600192.

The previous prime is 70102693. The next prime is 70102741. The reversal of 70102704 is 40720107.

It is a super-2 number, since 2×701027042 = 9828778216223232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504267 + ... + 504405.

It is an arithmetic number, because the mean of its divisors is an integer number (1388800).

Almost surely, 270102704 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 70102704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111104000).

70102704 is an abundant number, since it is smaller than the sum of its proper divisors (152105296).

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

70102704 is a wasteful number, since it uses less digits than its factorization.

70102704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 70102704 is about 8372.7357536232. The cubic root of 70102704 is about 412.3299898121.

The spelling of 70102704 in words is "seventy million, one hundred two thousand, seven hundred four".

Divisors: 1 2 3 4 6 7 8 12 14 16 19 21 24 28 38 42 48 56 57 76 79 84 112 114 133 139 152 158 168 228 237 266 278 304 316 336 399 417 456 474 532 553 556 632 798 834 912 948 973 1064 1106 1112 1264 1501 1596 1659 1668 1896 1946 2128 2212 2224 2641 2919 3002 3192 3318 3336 3792 3892 4424 4503 5282 5838 6004 6384 6636 6672 7784 7923 8848 9006 10507 10564 10981 11676 12008 13272 15568 15846 18012 18487 21014 21128 21962 23352 24016 26544 31521 31692 32943 36024 36974 42028 42256 43924 46704 55461 63042 63384 65886 72048 73948 76867 84056 87848 110922 126084 126768 131772 147896 153734 168112 175696 208639 221844 230601 252168 263544 295792 307468 417278 443688 461202 504336 527088 614936 625917 834556 887376 922404 1229872 1251834 1460473 1669112 1844808 2503668 2920946 3338224 3689616 4381419 5007336 5841892 8762838 10014672 11683784 17525676 23367568 35051352 70102704