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1972010616 = 2332343251331
BaseRepresentation
bin111010110001010…
…0111111001111000
312002102200112000020
41311202213321320
513014313314431
6523403010440
766603546042
oct16542477170
95072615006
101972010616
1192216a844
12470509a20
132557275b4
14149c90a92
15b81d4696
hex758a7e78

1972010616 has 128 divisors (see below), whose sum is σ = 5300951040. Its totient is φ = 609840000.

The previous prime is 1972010603. The next prime is 1972010617. The reversal of 1972010616 is 6160102791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972010617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5957571 + ... + 5957901.

It is an arithmetic number, because the mean of its divisors is an integer number (41413680).

Almost surely, 21972010616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1972010616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2650475520).

1972010616 is an abundant number, since it is smaller than the sum of its proper divisors (3328940424).

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

1972010616 is a wasteful number, since it uses less digits than its factorization.

1972010616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 1972010616 is about 44407.3261523366. The cubic root of 1972010616 is about 1254.0160148948.

The spelling of 1972010616 in words is "one billion, nine hundred seventy-two million, ten thousand, six hundred sixteen".

Divisors: 1 2 3 4 6 8 12 23 24 43 46 69 86 92 129 138 172 184 251 258 276 331 344 502 516 552 662 753 989 993 1004 1032 1324 1506 1978 1986 2008 2648 2967 3012 3956 3972 5773 5934 6024 7613 7912 7944 10793 11546 11868 14233 15226 17319 21586 22839 23092 23736 28466 30452 32379 34638 42699 43172 45678 46184 56932 60904 64758 69276 83081 85398 86344 91356 113864 129516 138552 166162 170796 182712 248239 249243 259032 327359 332324 341592 496478 498486 654718 664648 744717 982077 992956 996972 1309436 1489434 1910863 1964154 1985912 1993944 2618872 2978868 3572483 3821726 3928308 5732589 5957736 7144966 7643452 7856616 10717449 11465178 14289932 15286904 21434898 22930356 28579864 42869796 45860712 82167109 85739592 164334218 246501327 328668436 493002654 657336872 986005308 1972010616