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2978042001 = 311232315503
BaseRepresentation
bin1011000110000001…
…0101000010010001
321200112201012121220
42301200111002101
522044334321001
61211301435253
7133540640124
oct26140250221
97615635556
102978042001
111299033040
126b140bb29
13385c96b3c
1420372c3bb
151266a7c36
hexb1815091

2978042001 has 48 divisors (see below), whose sum is σ = 4675141632. Its totient is φ = 1670407200.

The previous prime is 2978041999. The next prime is 2978042077. The reversal of 2978042001 is 1002408792.

It is a happy number.

It is not a de Polignac number, because 2978042001 - 21 = 2978041999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2978042401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 538416 + ... + 543918.

It is an arithmetic number, because the mean of its divisors is an integer number (97398784).

Almost surely, 22978042001 is an apocalyptic number.

It is an amenable number.

2978042001 is a deficient number, since it is larger than the sum of its proper divisors (1697099631).

2978042001 is a wasteful number, since it uses less digits than its factorization.

2978042001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594 (or 5571 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 2978042001 is about 54571.4394257656. The cubic root of 2978042001 is about 1438.7221819233.

The spelling of 2978042001 in words is "two billion, nine hundred seventy-eight million, forty-two thousand, one".

Divisors: 1 3 11 23 31 33 69 93 253 341 529 713 759 1023 1587 2139 5503 5819 7843 16399 16509 17457 23529 49197 60533 126569 170593 180389 181599 379707 511779 541167 1392259 1876523 2911087 3923639 4176777 5629569 8733261 11770917 32021957 43160029 90243697 96065871 129480087 270731091 992680667 2978042001