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30266120 = 2351747947
BaseRepresentation
bin111001101110…
…1001100001000
32002221200022102
41303131030020
530222003440
63000412532
7515154263
oct163351410
962850272
1030266120
11160a2425
12a177148
136369161
14403bcda
1529ccb15
hex1cdd308

30266120 has 64 divisors (see below), whose sum is σ = 73716480. Its totient is φ = 11140096.

The previous prime is 30266099. The next prime is 30266129. The reversal of 30266120 is 2166203.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 30266092 and 30266101.

It is not an unprimeable number, because it can be changed into a prime (30266129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31487 + ... + 32433.

It is an arithmetic number, because the mean of its divisors is an integer number (1151820).

Almost surely, 230266120 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 30266120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36858240).

30266120 is an abundant number, since it is smaller than the sum of its proper divisors (43450360).

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

30266120 is a wasteful number, since it uses less digits than its factorization.

30266120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30266120 is about 5501.4652593650. The cubic root of 30266120 is about 311.6393213193.

The spelling of 30266120 in words is "thirty million, two hundred sixty-six thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 47 68 85 94 136 170 188 235 340 376 470 680 799 940 947 1598 1880 1894 3196 3788 3995 4735 6392 7576 7990 9470 15980 16099 18940 31960 32198 37880 44509 64396 80495 89018 128792 160990 178036 222545 321980 356072 445090 643960 756653 890180 1513306 1780360 3026612 3783265 6053224 7566530 15133060 30266120