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30460672 = 281129373
BaseRepresentation
bin111010000110…
…0101100000000
32010022120012001
41310030230000
530244220142
63004513344
7516624424
oct164145400
963276161
1030460672
1116215610
12a24b854
136406888
14408cb84
152a1a5b7
hex1d0cb00

30460672 has 72 divisors (see below), whose sum is σ = 68801040. Its totient is φ = 13332480.

The previous prime is 30460649. The next prime is 30460687. The reversal of 30460672 is 27606403.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 30460672.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81478 + ... + 81850.

It is an arithmetic number, because the mean of its divisors is an integer number (955570).

Almost surely, 230460672 is an apocalyptic number.

30460672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30460672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34400520).

30460672 is an abundant number, since it is smaller than the sum of its proper divisors (38340368).

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

30460672 is a wasteful number, since it uses less digits than its factorization.

30460672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 415 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30460672 is about 5519.1187702386. The cubic root of 30460672 is about 312.3056395686.

The spelling of 30460672 in words is "thirty million, four hundred sixty thousand, six hundred seventy-two".

Divisors: 1 2 4 8 11 16 22 29 32 44 58 64 88 116 128 176 232 256 319 352 373 464 638 704 746 928 1276 1408 1492 1856 2552 2816 2984 3712 4103 5104 5968 7424 8206 10208 10817 11936 16412 20416 21634 23872 32824 40832 43268 47744 65648 81664 86536 95488 118987 131296 173072 237974 262592 346144 475948 525184 692288 951896 1050368 1384576 1903792 2769152 3807584 7615168 15230336 30460672