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30841488 = 2432214177
BaseRepresentation
bin111010110100…
…1101010010000
32011000220120100
41311221222100
530343411423
63021012400
7523101606
oct165515220
964026510
1030841488
1116455737
12a3b4100
13650b002
14414b876
152a93343
hex1d69a90

30841488 has 30 divisors (see below), whose sum is σ = 86313734. Its totient is φ = 10280448.

The previous prime is 30841469. The next prime is 30841513. The reversal of 30841488 is 88414803.

It can be written as a sum of positive squares in only one way, i.e., 29942784 + 898704 = 5472^2 + 948^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106945 + ... + 107232.

Almost surely, 230841488 is an apocalyptic number.

It is an amenable number.

30841488 is an abundant number, since it is smaller than the sum of its proper divisors (55472246).

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

30841488 is a wasteful number, since it uses less digits than its factorization.

30841488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214191 (or 214182 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 30841488 is about 5553.5113216775. The cubic root of 30841488 is about 313.6017236647.

It can be divided in two parts, 30841 and 488, that added together give a square (31329 = 1772).

The spelling of 30841488 in words is "thirty million, eight hundred forty-one thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 214177 428354 642531 856708 1285062 1713416 1927593 2570124 3426832 3855186 5140248 7710372 10280496 15420744 30841488