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30880700 = 22521916253
BaseRepresentation
bin111010111001…
…1001110111100
32011002220100122
41311303032330
530401140300
63021514112
7523324124
oct165631674
964086318
1030880700
1116482144
12a412938
136522b06
14415bc84
152a9ec85
hex1d733bc

30880700 has 36 divisors (see below), whose sum is σ = 70542360. Its totient is φ = 11701440.

The previous prime is 30880699. The next prime is 30880741. The reversal of 30880700 is 708803.

30880700 = T96 + T97 + ... + T570.

It is a self number, because there is not a number n which added to its sum of digits gives 30880700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6227 + ... + 10026.

It is an arithmetic number, because the mean of its divisors is an integer number (1959510).

Almost surely, 230880700 is an apocalyptic number.

It is an amenable number.

30880700 is an abundant number, since it is smaller than the sum of its proper divisors (39661660).

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

30880700 is a wasteful number, since it uses less digits than its factorization.

30880700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16286 (or 16279 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 30880700 is about 5557.0405793012. The cubic root of 30880700 is about 313.7345722376.

The spelling of 30880700 in words is "thirty million, eight hundred eighty thousand, seven hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 380 475 950 1900 16253 32506 65012 81265 162530 308807 325060 406325 617614 812650 1235228 1544035 1625300 3088070 6176140 7720175 15440350 30880700