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30190164 = 22317197789
BaseRepresentation
bin111001100101…
…0101001010100
32002210211010020
41303022221110
530212041124
62555025140
7514416654
oct163125124
962724106
1030190164
1116050354
12a13b1b0
136340704
14401c364
1529b5379
hex1ccaa54

30190164 has 48 divisors (see below), whose sum is σ = 78523200. Its totient is φ = 8971776.

The previous prime is 30190159. The next prime is 30190169. The reversal of 30190164 is 46109103.

It is an interprime number because it is at equal distance from previous prime (30190159) and next prime (30190169).

It is a super-2 number, since 2×301901642 = 1822892004693792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30190169) 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, 19 + ... + 7770.

It is an arithmetic number, because the mean of its divisors is an integer number (1635900).

Almost surely, 230190164 is an apocalyptic number.

30190164 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30190164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39261600).

30190164 is an abundant number, since it is smaller than the sum of its proper divisors (48333036).

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

30190164 is a wasteful number, since it uses less digits than its factorization.

30190164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7832 (or 7830 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30190164 is about 5494.5576710050. The cubic root of 30190164 is about 311.3784057536.

Adding to 30190164 its reverse (46109103), we get a palindrome (76299267).

The spelling of 30190164 in words is "thirty million, one hundred ninety thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 17 19 34 38 51 57 68 76 102 114 204 228 323 646 969 1292 1938 3876 7789 15578 23367 31156 46734 93468 132413 147991 264826 295982 397239 443973 529652 591964 794478 887946 1588956 1775892 2515847 5031694 7547541 10063388 15095082 30190164