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30023130 = 23547107199
BaseRepresentation
bin111001010000…
…1110111011010
32002111022222210
41302201313122
530141220010
62551255550
7513122664
oct162416732
962438883
1030023130
1115a46905
12a07a5b6
1362b2687
143db7534
152980b20
hex1ca1dda

30023130 has 64 divisors (see below), whose sum is σ = 74649600. Its totient is φ = 7723584.

The previous prime is 30023107. The next prime is 30023137. The reversal of 30023130 is 3132003.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30023137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150771 + ... + 150969.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 230023130 is an apocalyptic number.

30023130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30023130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37324800).

30023130 is an abundant number, since it is smaller than the sum of its proper divisors (44626470).

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

30023130 is a wasteful number, since it uses less digits than its factorization.

30023130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 30023130 is about 5479.3366386817. The cubic root of 30023130 is about 310.8030859566.

Adding to 30023130 its reverse (3132003), we get a palindrome (33155133).

The spelling of 30023130 in words is "thirty million, twenty-three thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 107 141 199 214 235 282 321 398 470 535 597 642 705 995 1070 1194 1410 1605 1990 2985 3210 5029 5970 9353 10058 15087 18706 21293 25145 28059 30174 42586 46765 50290 56118 63879 75435 93530 106465 127758 140295 150870 212930 280590 319395 638790 1000771 2001542 3002313 5003855 6004626 10007710 15011565 30023130