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30212003223020 = 2255941725423703
BaseRepresentation
bin1101101111010010001111…
…01110000101010111101100
310221222020110110011100111002
412313221013232011113230
512424443140311114040
6144131111440015432
76235513414142423
oct667510756052754
9127866413140432
1030212003223020
119698925215383
12347b356901578
1313b1c97480c48
147663a96882ba
15375d3be08a15
hex1b7a47b855ec

30212003223020 has 24 divisors (see below), whose sum is σ = 63446277059424. Its totient is φ = 12084597424256.

The previous prime is 30212003223007. The next prime is 30212003223037. The reversal of 30212003223020 is 2032230021203.

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 = 30212003222983 and 30212003223001.

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, 11523512 + ... + 13900191.

It is an arithmetic number, because the mean of its divisors is an integer number (2643594877476).

Almost surely, 230212003223020 is an apocalyptic number.

It is an amenable number.

30212003223020 is an abundant number, since it is smaller than the sum of its proper divisors (33234273836404).

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

30212003223020 is a wasteful number, since it uses less digits than its factorization.

30212003223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25483129 (or 25483127 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 30212003223020 its reverse (2032230021203), we get a palindrome (32244233244223).

The spelling of 30212003223020 in words is "thirty trillion, two hundred twelve billion, three million, two hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 59417 118834 237668 297085 594170 1188340 25423703 50847406 101694812 127118515 254237030 508474060 1510600161151 3021200322302 6042400644604 7553000805755 15106001611510 30212003223020