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30710148 = 22373741241
BaseRepresentation
bin111010100100…
…1100110000100
32010210020101220
41311021212010
530330211043
63014120340
7522013650
oct165114604
963706356
1030710148
1116375a97
12a3500b0
1364932b1
144115a60
152a69483
hex1d49984

30710148 has 96 divisors (see below), whose sum is σ = 86515968. Its totient is φ = 8294400.

The previous prime is 30710117. The next prime is 30710153. The reversal of 30710148 is 84101703.

It is a super-2 number, since 2×307101482 = 1886226380363808, which contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 127308 + ... + 127548.

It is an arithmetic number, because the mean of its divisors is an integer number (901208).

Almost surely, 230710148 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 30710148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43257984).

30710148 is an abundant number, since it is smaller than the sum of its proper divisors (55805820).

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

30710148 is a wasteful number, since it uses less digits than its factorization.

30710148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 30710148 is about 5541.6737543814. The cubic root of 30710148 is about 313.1559274395.

The spelling of 30710148 in words is "thirty million, seven hundred ten thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 41 42 74 82 84 111 123 148 164 222 241 246 259 287 444 482 492 518 574 723 777 861 964 1036 1148 1446 1517 1554 1687 1722 2892 3034 3108 3374 3444 4551 5061 6068 6748 8917 9102 9881 10122 10619 17834 18204 19762 20244 21238 26751 29643 31857 35668 39524 42476 53502 59286 62419 63714 69167 107004 118572 124838 127428 138334 187257 207501 249676 276668 365597 374514 415002 731194 749028 830004 1096791 1462388 2193582 2559179 4387164 5118358 7677537 10236716 15355074 30710148