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30294012 = 22371312753
BaseRepresentation
bin111001110001…
…1111111111100
32010000002120110
41303203333330
530223402022
63001150020
7515331510
oct163437774
963002513
1030294012
1116111381
12a18b310
136378a68
144048140
1529d600c
hex1ce3ffc

30294012 has 48 divisors (see below), whose sum is σ = 81430272. Its totient is φ = 8586240.

The previous prime is 30294001. The next prime is 30294023. The reversal of 30294012 is 21049203.

It is an interprime number because it is at equal distance from previous prime (30294001) and next prime (30294023).

It is a super-2 number, since 2×302940122 = 1835454326112288, which contains 22 as substring.

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

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 30294012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9628 + ... + 12380.

It is an arithmetic number, because the mean of its divisors is an integer number (1696464).

Almost surely, 230294012 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 30294012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40715136).

30294012 is an abundant number, since it is smaller than the sum of its proper divisors (51136260).

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

30294012 is a wasteful number, since it uses less digits than its factorization.

30294012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2896 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 30294012 is about 5503.9996366279. Note that the first 3 decimals coincide. The cubic root of 30294012 is about 311.7350232150.

The spelling of 30294012 in words is "thirty million, two hundred ninety-four thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 131 262 393 524 786 917 1572 1834 2751 2753 3668 5502 5506 8259 11004 11012 16518 19271 33036 38542 57813 77084 115626 231252 360643 721286 1081929 1442572 2163858 2524501 4327716 5049002 7573503 10098004 15147006 30294012