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30420303360 = 29353960977
BaseRepresentation
bin11100010101001100…
…001111111000000000
32220112001011112012020
4130111030033320000
5444300044201420
621550324401440
72124562212036
oct342514177000
986461145166
1030420303360
11119a0517187
125a8b846280
132b3a494c05
1416881b6556
15bd099d340
hex71530fe00

30420303360 has 80 divisors (see below), whose sum is σ = 97249931856. Its totient is φ = 8112078848.

The previous prime is 30420303341. The next prime is 30420303409. The reversal of 30420303360 is 6330302403.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 30420303360.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972809 + ... + 1988168.

Almost surely, 230420303360 is an apocalyptic number.

30420303360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30420303360 is an abundant number, since it is smaller than the sum of its proper divisors (66829628496).

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

30420303360 is an equidigital number, since it uses as much as digits as its factorization.

30420303360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3961003 (or 3960987 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 30420303360 its reverse (6330302403), we get a palindrome (36750605763).

The spelling of 30420303360 in words is "thirty billion, four hundred twenty million, three hundred three thousand, three hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 512 640 768 960 1280 1536 1920 2560 3840 7680 3960977 7921954 11882931 15843908 19804885 23765862 31687816 39609770 47531724 59414655 63375632 79219540 95063448 118829310 126751264 158439080 190126896 237658620 253502528 316878160 380253792 475317240 507005056 633756320 760507584 950634480 1014010112 1267512640 1521015168 1901268960 2028020224 2535025280 3042030336 3802537920 5070050560 6084060672 7605075840 10140101120 15210151680 30420303360