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70274430 = 232517231997
BaseRepresentation
bin1000011000001…
…00110101111110
311220020022101200
410030010311332
5120442240210
610550120330
71512215502
oct414046576
9156208350
1070274430
1136739246
121b6500a6
1311736705
149494302
1562820c0
hex4304d7e

70274430 has 96 divisors (see below), whose sum is σ = 201973824. Its totient is φ = 16862208.

The previous prime is 70274411. The next prime is 70274441. The reversal of 70274430 is 3447207.

It is a junction number, because it is equal to n+sod(n) for n = 70274394 and 70274403.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 34192 + ... + 36188.

It is an arithmetic number, because the mean of its divisors is an integer number (2103894).

Almost surely, 270274430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70274430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100986912).

70274430 is an abundant number, since it is smaller than the sum of its proper divisors (131699394).

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

70274430 is a wasteful number, since it uses less digits than its factorization.

70274430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 70274430 is about 8382.9845520554. The cubic root of 70274430 is about 412.6664011848. Note that the first 3 decimals are identical.

The spelling of 70274430 in words is "seventy million, two hundred seventy-four thousand, four hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 23 30 34 45 46 51 69 85 90 102 115 138 153 170 207 230 255 306 345 391 414 510 690 765 782 1035 1173 1530 1955 1997 2070 2346 3519 3910 3994 5865 5991 7038 9985 11730 11982 17595 17973 19970 29955 33949 35190 35946 45931 59910 67898 89865 91862 101847 137793 169745 179730 203694 229655 275586 305541 339490 413379 459310 509235 611082 688965 780827 826758 1018470 1377930 1527705 1561654 2066895 2342481 3055410 3904135 4133790 4684962 7027443 7808270 11712405 14054886 23424810 35137215 70274430