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30005407143456 = 253312556324411
BaseRepresentation
bin1101101001010001011011…
…01000100101011000100000
310221020111012102012002212120
412310220231220211120200
512413102033212042311
6143452143241024240
76214550650346643
oct664505550453040
9127214172162776
1030005407143456
119619249102a58
1234472ba185080
131398661740a14
1475a3ab551a5a
15370799855706
hex1b4a2da25620

30005407143456 has 24 divisors (see below), whose sum is σ = 78764193751824. Its totient is φ = 10001802381120.

The previous prime is 30005407143443. The next prime is 30005407143457. The reversal of 30005407143456 is 65434170450003.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30005407143457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156278162110 + ... + 156278162301.

It is an arithmetic number, because the mean of its divisors is an integer number (3281841406326).

Almost surely, 230005407143456 is an apocalyptic number.

It is an amenable number.

30005407143456 is an abundant number, since it is smaller than the sum of its proper divisors (48758786608368).

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

30005407143456 is a wasteful number, since it uses less digits than its factorization.

30005407143456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312556324424 (or 312556324416 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 42.

Adding to 30005407143456 its reverse (65434170450003), we get a palindrome (95439577593459).

The spelling of 30005407143456 in words is "thirty trillion, five billion, four hundred seven million, one hundred forty-three thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 312556324411 625112648822 937668973233 1250225297644 1875337946466 2500450595288 3750675892932 5000901190576 7501351785864 10001802381152 15002703571728 30005407143456