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1972864474 = 27532658847
BaseRepresentation
bin111010110010111…
…1000010111011010
312002111021220021121
41311211320113122
513020023130344
6523433155454
766614033320
oct16545702732
95074256247
101972864474
119226a3309
1247085bb8a
13255966139
1414a033d10
15b8302684
hex759785da

1972864474 has 16 divisors (see below), whose sum is σ = 3445867008. Its totient is φ = 829559952.

The previous prime is 1972864471. The next prime is 1972864483. The reversal of 1972864474 is 4744682791.

It is a super-3 number, since 3×19728644743 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1972864471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1328682 + ... + 1330165.

It is an arithmetic number, because the mean of its divisors is an integer number (215366688).

Almost surely, 21972864474 is an apocalyptic number.

1972864474 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1972864474 is a deficient number, since it is larger than the sum of its proper divisors (1473002534).

1972864474 is a wasteful number, since it uses less digits than its factorization.

1972864474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658909.

The product of its digits is 2709504, while the sum is 52.

The square root of 1972864474 is about 44416.9390435676. The cubic root of 1972864474 is about 1254.1969803004.

The spelling of 1972864474 in words is "one billion, nine hundred seventy-two million, eight hundred sixty-four thousand, four hundred seventy-four".

Divisors: 1 2 7 14 53 106 371 742 2658847 5317694 18611929 37223858 140918891 281837782 986432237 1972864474