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70260330 = 23572983139
BaseRepresentation
bin1000011000000…
…01011001101010
311220012121001110
410030001121222
5120441312310
610545531150
71512126420
oct414013152
9156177043
1070260330
1136729698
121b643ab6
131173017a
14948d110
15627cd20
hex430166a

70260330 has 128 divisors (see below), whose sum is σ = 203212800. Its totient is φ = 15208704.

The previous prime is 70260329. The next prime is 70260341. The reversal of 70260330 is 3306207.

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

It is a junction number, because it is equal to n+sod(n) for n = 70260297 and 70260306.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 505401 + ... + 505539.

It is an arithmetic number, because the mean of its divisors is an integer number (1587600).

Almost surely, 270260330 is an apocalyptic number.

70260330 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 70260330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101606400).

70260330 is an abundant number, since it is smaller than the sum of its proper divisors (132952470).

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

70260330 is a wasteful number, since it uses less digits than its factorization.

70260330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 70260330 is about 8382.1435206038. The cubic root of 70260330 is about 412.6387999390.

Adding to 70260330 its reverse (3306207), we get a palindrome (73566537).

The spelling of 70260330 in words is "seventy million, two hundred sixty thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 29 30 35 42 58 70 83 87 105 139 145 166 174 203 210 249 278 290 406 415 417 435 498 581 609 695 830 834 870 973 1015 1162 1218 1245 1390 1743 1946 2030 2085 2407 2490 2905 2919 3045 3486 4031 4170 4814 4865 5810 5838 6090 7221 8062 8715 9730 11537 12035 12093 14442 14595 16849 17430 20155 23074 24070 24186 28217 29190 33698 34611 36105 40310 50547 56434 57685 60465 69222 72210 80759 84245 84651 101094 115370 120930 141085 161518 168490 169302 173055 242277 252735 282170 334573 346110 403795 423255 484554 505470 669146 807590 846510 1003719 1211385 1672865 2007438 2342011 2422770 3345730 4684022 5018595 7026033 10037190 11710055 14052066 23420110 35130165 70260330