Search a number
-
+
30015214649280 = 263357412833557
BaseRepresentation
bin1101101001100011101100…
…01101001111111111000000
310221021102111220202000122000
412310301312031033333000
512413232124422234110
6143500444345544000
76215345666645250
oct664616615177700
9127242456660560
1030015214649280
1196224211a1273
1234491967a5000
1313995655a13c3
1475aa5bcc7960
15370b7088d1c0
hex1b4c7634ffc0

30015214649280 has 1344 divisors, whose sum is σ = 125566982231040. Its totient is φ = 6610787205120.

The previous prime is 30015214649269. The next prime is 30015214649293. The reversal of 30015214649280 is 8294641251003.

30015214649280 is a `hidden beast` number, since 3 + 0 + 0 + 1 + 5 + 21 + 464 + 92 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a super-2 number, since 2×300152146492802 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8438349262 + ... + 8438352818.

It is an arithmetic number, because the mean of its divisors is an integer number (93427814160).

Almost surely, 230015214649280 is an apocalyptic number.

30015214649280 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 30015214649280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62783491115520).

30015214649280 is an abundant number, since it is smaller than the sum of its proper divisors (95551767581760).

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

30015214649280 is a wasteful number, since it uses less digits than its factorization.

30015214649280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3755 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 30015214649280 in words is "thirty trillion, fifteen billion, two hundred fourteen million, six hundred forty-nine thousand, two hundred eighty".