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30064020 = 22357471523
BaseRepresentation
bin111001010101…
…1110110010100
32002120102002020
41302223312110
530144022040
62552213140
7513353130
oct162536624
962512066
1030064020
1115a745a8
12a09a1b0
1362c817c
143dc83c0
15298ccd0
hex1cabd94

30064020 has 96 divisors (see below), whose sum is σ = 98316288. Its totient is φ = 6721152.

The previous prime is 30064019. The next prime is 30064043. The reversal of 30064020 is 2046003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18979 + ... + 20501.

It is an arithmetic number, because the mean of its divisors is an integer number (1024128).

Almost surely, 230064020 is an apocalyptic number.

30064020 is a gapful number since it is divisible by the number (30) 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 30064020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49158144).

30064020 is an abundant number, since it is smaller than the sum of its proper divisors (68252268).

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

30064020 is a wasteful number, since it uses less digits than its factorization.

30064020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1589 (or 1587 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30064020 is about 5483.0666601821. The cubic root of 30064020 is about 310.9441213627.

The spelling of 30064020 in words is "thirty million, sixty-four thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 47 60 70 84 94 105 140 141 188 210 235 282 329 420 470 564 658 705 940 987 1316 1410 1523 1645 1974 2820 3046 3290 3948 4569 4935 6092 6580 7615 9138 9870 10661 15230 18276 19740 21322 22845 30460 31983 42644 45690 53305 63966 71581 91380 106610 127932 143162 159915 213220 214743 286324 319830 357905 429486 501067 639660 715810 858972 1002134 1073715 1431620 1503201 2004268 2147430 2505335 3006402 4294860 5010670 6012804 7516005 10021340 15032010 30064020