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30000554740 = 22513281410629
BaseRepresentation
bin11011111100001011…
…000010001011110100
32212102210100002100001
4123330023002023310
5442420120222430
621440532001044
72111304336112
oct337413021364
985383302301
1030000554740
11117a55928a2
125993160184
132aa152a750
141648550ab2
15ba8bd83ca
hex6fc2c22f4

30000554740 has 48 divisors (see below), whose sum is σ = 68089024080. Its totient is φ = 11037680640.

The previous prime is 30000554737. The next prime is 30000554741. The reversal of 30000554740 is 4745500003.

It can be written as a sum of positive squares in 8 ways, for example, as 12013156 + 29988541584 = 3466^2 + 173172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30000554699 and 30000554708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000554741) 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, 132255 + ... + 278374.

It is an arithmetic number, because the mean of its divisors is an integer number (1418521335).

Almost surely, 230000554740 is an apocalyptic number.

It is an amenable number.

30000554740 is an abundant number, since it is smaller than the sum of its proper divisors (38088469340).

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

30000554740 is a wasteful number, since it uses less digits than its factorization.

30000554740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410932 (or 410930 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 28.

The spelling of 30000554740 in words is "thirty billion, five hundred fifty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 281 562 1124 1405 2810 3653 5620 7306 14612 18265 36530 73060 410629 821258 1642516 2053145 4106290 5338177 8212580 10676354 21352708 26690885 53381770 106763540 115386749 230773498 461546996 576933745 1153867490 1500027737 2307734980 3000055474 6000110948 7500138685 15000277370 30000554740